Supply of Laboratory Equipment (Part L Radiology equipments) for SES of the Republic of Uzbekistan.

New amendment added #2: 1. The ITB has been amended in order to extend the bid submission deadline from 04-Dec-2025 07:00 UTC till 08-Dec-2025 07:00 UTC.2. The ITB has been amended in order to reflect the changes in Section_III_Returnable_Bidding_Forms_Form C_Price Schedule Form and Section_IV_Contract_forms.

New amendment added #1: 1. The ITB has been amended in order to extend the bid submission deadline from 01-Dec-2025 07:00 UTC till 04-Dec-2025 07:00 UTC.2. The ITB has been amended in order to reflect the changes in Section_III_Returnable_Bidding_Forms_Form D_Technical Bid Form.

New clarification added: Q.60:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 5, Item Specification No. 40. The specification states that the supplier must include a PC or laptop with all software and hardware necessary for the correct reading and processing of measurements.The portable spectrometric complex can be connected to a computer, but it is capable of operating independently and does not require a computer for its core functions. In this context, please confirm whether it is necessary to procure a separate computer for this item.A.60:Lot 5, S/N 40: Clarification request accepted and will be amended. The supplier may provide a PC or laptop with all software and hardware necessary for correct reading and processing of measurements; however, the portable spectrometric complex must be fully operational independently, without a separate computer, if the device design allows.

New clarification added: Q.59:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 4, Clauses 16 through 18. These requirements are not applicable, as the device is equipped with a built-in rechargeable battery and does not use standard NiMH or alkaline batteries, nor does it require a Plug Type “F” (CEE 7) connection.A.59:Lot 4, S/N 16–18: Clarification request accepted and will be amended. Requirements for standard NiMH or replaceable alkaline batteries, a battery with charger, and Plug Type “F” (CEE 7 standard) are not mandatory if the device operates from a built-in rechargeable battery.

New clarification added: Q.58:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 5, Clauses 37 and 38. The device is powered through an adapter with a built-in rechargeable battery, and all operation is carried out from this internal battery, which can be recharged as needed.In this context, the requirements for a 220 V ±10 percent, 50/60 Hz power supply and Plug Type “F” (CEE 7 standard) are not applicable to this type of equipment. Please review and clarify these specifications.A.58:Lot 5, S/N 37–38: Clarification request accepted and will be amended. The requirement for a 220 V ±10 %, 50/60 Hz power supply is not mandatory if the device operates from a built-in rechargeable battery. The requirement for Plug Type “F” (CEE 7 standard) is not mandatory if the device provides internal battery operation.

New clarification added: Q.57:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 5, Clause 22. We request that this requirement be revised so that the second detector may also be specified with dimensions Ø63×63 mm. This adjustment would ensure compatibility with the equipment while still meeting the functional needs of the project.A.57:Lot 5, S/N 22: Clarification request accepted and will be amended. Detector dimensions: Ø 50 × 50 mm ±20%.

New clarification added: Q.56:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding the requirement for PC connectivity and data display under the relevant item. Data transfer to a PC is fully supported, and the device is capable of storing up to 10,000 measurement results.We request that this technical requirement be revised so that it reflects the functionality that is actually needed, specifically that measurement results must be displayable on a PC, rather than requiring a spectrum display when the unit is connected.A.56:Lot 2: Suggestion is acceptable, but Technical Specification does not need to be amended.

New clarification added: Q.55:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2 as follows.Item Specification No. 49. Sub-item a requires at least one high-speed USB connection. Some systems do not use a USB connector and instead provide alternative diagnostic and communication interfaces such as RS-232 with a rear-panel 9-pin D-connector, and Ethernet connectivity through an RJ-45 jack with 10 Base-T and 100 Base-TX transceivers. Please confirm whether this requirement may be deleted or rephrased in order to allow equivalent communication interfaces and to ensure fair competition.Item Specification No. 51. Sub-item a describes a benchtop multichamber alpha spectrometer with at least four channels and indicates that each unit must include a vacuum gauge, a variable detector bias supply that is switchable between positive and negative polarity, a preamplifier, a test pulse generator with variable amplitude, and a leakage current monitor. Some systems achieve equivalent performance using positive bias only. Please confirm whether this requirement may be deleted or rephrased to allow equivalent configurations and to ensure fair competition.A.55:Lot 2, S/N 49: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.54:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 47. Sub-item b requires that a light flash once for each digitized pulse.Please confirm whether this requirement may be removed, as it does not affect the principal metrological or functional characteristics of the equipment, and its deletion would support fair competition.A.54:Lot 2, S/N 47: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.53:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 45. The specification states that the front panel must include indicators meeting at least two of the listed requirements. However, only two requirements are listed below Item 45. As a result, the phrase “at least two” does not appear to be applicable.Please confirm whether Item 45 should be deleted, and whether Item Specifications No. 46 and No. 47 should also be deleted or rephrased accordingly.A.53:Lot 2, S/N 45: Clarification request accepted and the Technical Specifications will be amended accordingly. 

New clarification added: Q.52:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 37. Sub-item a specifies a required range of 0 to 10,000 nA.Some systems use a different detector leakage current monitoring range while remaining fully functional and compliant with standard operational requirements. Please confirm whether this specification may be deleted or rephrased in order to allow fair competition.A.52:Lot 2, S/N 37: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.51:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 35. Sub-item h requires a front-panel indicator with a red LED that flashes when the pulser is on.Some systems use an alternative indication method, such as a green LED or another visual indicator, to show channel or acquisition status. Please confirm whether this requirement may be revised or rephrased to allow equivalent forms of indication and to ensure fair competition.A.51:Lot 2, S/N 35: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.27:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please find our requests for clarification below:Lot 2 – Multichamber Alpha SpectrometerItem 8 – Modular Alpha Spectroscopy System (4 modules)Question:Please confirm whether “modules” refer to measurement channels/chambers. Our system contains modules with two chambers each; therefore, offering four modules results in eight measurement channels. Would this be considered compliant?Item 11 – i.Cast brass, nickel-plated, or better materialQuestion:Could you clarify whether “better” should be understood as “equivalent”? We intend to offer nickel-plated aluminum chambers, which are widely used and fully suitable for alpha spectroscopy. Would this material be acceptable?Item 21 – Range 0 ±100 V, 10 µAQuestion:Modern detectors, including those we propose, require positive bias only. Negative bias capability is unnecessary and may pose operational risks. Is it acceptable to offer a spectrometer without reversible voltage polarity, assuming all performance specifications remain fully met?Item b – Pulser configurable by calibration sequenceQuestion:We understand this requirement to mean that the pulser should allow adjustment of amplitude and frequency to simulate calibration peaks and verify the electronics. Will a system be acceptable if frequency and voltage are adjustable, affecting peak position and intensity as required?Item h – Indicator for pulser operation (front-panel LED)Question:Would it be acceptable if pulser operation is displayed in the software interface on the computer instead of using a blinking LED on the front panel? This does not affect measurement or testing functionality.Item b – Conversion gain software-selectable from 2048, 4096, or widerQuestion:Please confirm whether “conversion gain” refers to the number of channels used for spectrum acquisition.Item c – Fine gain: software-selectable 0.25 to 1Question:Our system implements gain differently, offering smooth fine gain control from 0.5 to 6.5 and coarse gains of 2, 5, 10, 20, 50, 100, 200, and 1000. The energy range (0–10 MeV) can still be mapped accurately into the selected number of channels. Would this configuration be acceptable?Item a – ADC BusyQuestion:Do we understand correctly that “ADC Busy” refers to a signal flashing when each pulse is processed? If not, please clarify how this function should be implemented.Item 55 – Required software and hardware, including licensesQuestion:Should the software include features such as peak search, nuclide identification, activity calculation with uncertainty, and MDA calculations using tracer activity? Or are basic features such as acquisition and saving of spectra sufficient?Vacuum pump requirement – Pump inlet flange: 50/60 HzQuestion:Please confirm that this refers to the AC frequency of the vacuum pump power supply.Lot 5 – Portable Spectrometric ComplexItem a – Gamma radiation energy range 25 keV – 3 MeV (or wider)Question:Would an energy range starting from 50 keV be acceptable?Ambient dose equivalent rate 0.03 – 150 μSv/hQuestion:Is it acceptable if the dose rate is calculated from the measured spectra?Two scintillation systems (40×40 and 63×63 detectors)Question:Requiring two detectors of different sizes increases weight and bulk without clear benefit. Typically, portable systems use a single spectrometric detector of one size.We propose a single NaI(Tl) detector with a much larger sensitive volume (>300 mm³) than both specified detectors combined, offering significantly better sensitivity.Would such a configuration be acceptable?If two detectors are indeed required, could you clarify how they are intended to operate together?Item d – High-resolution LED monitor, at least 17”Question:Portable systems are usually shoulder-mounted with smaller computers. Would a smaller screen, such as 7” or 10”, be acceptable?A.27:Lot 2, S/N 8: Clarification request acceptable and will be amended.Alpha spectroscopy system with 4 measurement chambers. Systems with 6 or 8 chambers are also acceptable.Lot 2, S/N 11(i): Clarification request acceptable and will be amended. Cast brass, nickel-plated or equivalent/better material. Nickel-plated aluminum chambers are acceptable.Lot 2, S/N 21: Clarification request accepted and will be amended. The voltage range of 0 to ±100 V, 10 µA is required. Devices may have only positive bias, provided that all functional and performance specifications are met.Lot 2, S/N b: Clarification request accepted and will be amended. Allowing adjustment of amplitude and frequency for calibration peaks and electronics verification.Lot2, S/N h: Clarification request accepted and will be amended. Front-panel BIAS indicator (LED or via software/computer monitor), provided pulser operation visibility does not affect measurements.Lot 2 S/N b: Clarification request accepted and will be amended. Conversion gain refers to the number of channels available for spectrum acquisition.Lot 2, S/N c (Fine gain): Clarification request not acceptable. The fine gain range shall remain as specified in the Technical Specifications (0.25–1). No amendment required.Lot 2, S/N (ADC Busy): Clarification request acceptable and will be amended. ADC Busy - refers to the standard hardware-level busy signal generated by the ADC during pulse processing. A visual indicator may be included as an additional representation.Lot 2, S/N 55: Clarification request accepted and will be amended. The software must include peak search, peak identification, activity calculation with uncertainty, and MDA determination using added tracer activity.Lot 2, S/N a: The pump must evacuate all 4 chambers to the required vacuum level within ≤5 minutes. AC frequency (50/60 Hz) affects motor speed but does not limit pump performance.Lot 5, S/N a: Clarification request not accepted.Lot 5, S/N 15: Clarification request accepted and will be amended: (Optional) The ambient dose equivalent rate can be calculated from measured spectra provided that the spectrometer is calibrated using 8–12 sources covering the full energy range of the instrument.Lot 5, S/N 19: Clarification request accepted. Single-detector solutions are also acceptable.Lot 5, S/N d: Clarification request accepted and will be amended. Smaller screens (7”–10”) are also acceptable.

New clarification added: Q. 39:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Item Specifications No. 10, 11, 12, 13, and 14 under Lot 6. We request a revision of the Minimum Detectable Activity (MDA) values listed in the technical specifications, specifically the following:Cs-137: 3 BqTh-232: 7 BqRa-226: 8 BqK-40: 40 BqThese values are indicated for conditions where a protective lead layer of at least 5 cm is used and where the detector is in direct contact with the sample. Such values are not technically achievable under internationally accepted whole-body measurement conditions.According to IAEA, ICRP, and UNSCEAR, the human body contains 3000 to 4000 Bq of natural K-40, which creates an unavoidable internal background. Environmental background radiation from building materials, soil, cosmic rays, and naturally occurring radionuclides such as K-40, Ra-226, and Th-232 further increases the minimum detectable activity.For these reasons, the requested MDAs of 7 to 8 Bq are significantly below internationally achievable detection limits and cannot be met by standard whole-body spectrometry systems.We therefore request that the committee revise these values to internationally realistic ranges, to support a fair and technically valid evaluation process. Suggested achievable values are as follows:Cs-137: from 1000 BqTh-232: from 1000 BqRa-226: from 1000 BqK-40: from 3000 BqA.39: Lot 11, S/N 10, 11, 12, 13, 14: Clarification request not accepted. The bidder’s proposal to revise MDA values to higher, internationally achievable ranges is not accepted by the end-user. The MDA values must comply with end-user operational experience, e.g., Cs-137 ≥ 200 Bq in 10 min (SEG10P), Co-60 ≥ 60 Bq in 3 min (SKG-AT1316A). Therefore, the requested MDA values in the bidder’s clarification cannot be applied.

New clarification added: Q.49:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 29. Sub-item b requires that the pulser be configurable by a calibration sequence.Some systems incorporate independent pulsers for each chamber within a spectrometer module, with synchronization across modules that enables simultaneous quality assurance checks of multiple chambers. In this context, please confirm whether this requirement may be removed or adjusted in order to ensure fair competition.A.49:Lot 2, S/N 29: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.50:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 30. Sub-item c indicates a required pulser frequency of 100 Hz.Some systems operate with a different pulser frequency, while still meeting all required metrological and performance characteristics. Please confirm whether this requirement may be removed or rephrased in order to allow fair competition.A.50:Lot 2, S/N 30: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.48:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Item Specification No. 27 under Lot 2. The technical specification refers to a calibration pulser.Some systems include independent pulsers for each chamber within a spectrometer module, with synchronization across modules that allows simultaneous quality assurance checks of multiple chambers. In this context, please confirm whether the requirement for a specific calibration pulser configuration may be removed or adjusted in order to ensure fair competition.A.48:Lot 2, S/N 27: Clarification request accepted and the Technical Specifications will be amended accordingly. 

New clarification added: Q.47:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Item Specification No. 26 under Lot 2. The technical specification requires a front-panel indicator with a red LED for each channel to show when the bias is on.Some systems use an alternative indication method, such as a green LED or another visual indicator, to display channel status or acquisition operation. Please confirm whether this requirement may be revised or rephrased to allow equivalent forms of indication and to ensure fair competition.A.47:Lot 2, S/N 26: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.46:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Item Specification No. 21 under Lot 2. The technical specification indicates a required bias supply range of 0 ±100 V at 10 µA.Some systems use a bias supply configuration with control through the host computer and an adjustable range from 0 to 100 V in 1 V increments, without the need for negative polarity. In this context, please confirm whether the requirement may be revised to “Bias Supply: Range from 0 to 100 V” in order to ensure fair competition.A.46:Lot 2, S/N 21: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.45:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Item Specification No. 6 (Calibration Pulser) under Lot 2. Some systems include independent reference pulsers for each chamber within a spectrometer module, with synchronization across modules that enables simultaneous quality assurance checks of multiple chambers. In light of this, please confirm whether the requirement for a specific calibration pulser configuration may be removed or adjusted in order to ensure fair competition.A.45:Lot 2, S/N 6: Clarification request accepted and the Technical Specifications will be amended accordingly.

New clarification added: Q.44:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 8, Item Specification No. 12. The technical specification requires a built-in battery.Some dosimeter designs operate using AAA 1.5 V alkaline batteries, with an autonomy of approximately 12 months when operating 8 hours per day, 5 days per week, in run mode without excessive alarms. This configuration does not affect the metrological or operational parameters of the device.Please confirm whether the requirement for a built-in battery may be removed or adjusted in order to allow fair competition.A.44:Lot 8, S/N 12: Clarification request accepted and will be amended. Use of replaceable batteries (AAA 1.5 V) is acceptable.

New clarification added: Q.43:According to Section III Returnable Bidding Forms, Form D Technical Bid Form, please provide clarification regarding Lot 10, Serial No. 37. The specification states: “Certification of testing in accordance with ANSI/ASHRAE Standard 110 or equivalent.” Provision of this certificate is optional.Each radiometer can be supplied with a factory calibration certificate for radon and equilibrium equivalent concentration (EEC) measurements, including a single-point calibration at 300 Bq/m³. An accredited calibration to ISO 17025 for EEC radon can also be arranged, although it is not required and may require additional time and expense.Please confirm whether the factory calibration certificate can be accepted as an equivalent to ANSI/ASHRAE Standard 110 under this solicitation.A.43:Lot 10, S/N 37: Clarification request accepted and will be amended. Factory verification and a device passport are mandatory. Certification according to ANSI/ASHRAE 110 is optional.

New clarification added: Q.42:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 2, Item Specification No. 5 (Preamplifier). Some systems integrate the amplifier into the front-end hardware, in which case a separate preamplifier is not required. Please confirm whether a technical offer that does not include a standalone preamplifier, but still fully meets the functional requirements of this item, would be considered compliant and would not be disqualified under this solicitation.A.42:Lot 2, S/N 5: Clarification request not accepted. The question relates to how a future bid will be evaluated, which cannot be addressed through the clarification process. Clarifications serve only to explain the existing requirements and technical specifications, not to pre-assess compliance of any potential offer. The evaluation of submitted bids will be conducted strictly in accordance with the solicitation documents and the criteria defined therein.

New clarification added: Q.41:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 8, Item Specification No. 28, sub-item m. The technical specification requires a memory capacity of at least 4000 events.We request clarification on whether this requirement may be adjusted to a lower threshold, such as at least 3000 or 3500 events, in order to ensure fair competition, since the value of 4000 events corresponds to a specific dosimeter model.A.41:Lot 8, S/N 28: Clarification request accepted and will be amended. Memory at least 3000 events.

New clarification added: Q.40:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 9, Item Specification No. 23, sub-item ii. The technical specification indicates an operating temperature range of -10°C to 35°C.This type of equipment is laboratory equipment and is not intended for outdoor use, particularly due to the specified lower temperature limit of -10°C. Please review and clarify this requirement.A.40:Lot 9, S/N 23: Clarification request accepted and will be amended. Temperature range will be +10 °C to +35 °C.

New clarification added: Q.38:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 6, Specification No. 9. The technical specifications state that the weight of the kit must not exceed 25 kg. Please confirm whether this weight requirement is intended to include the breathing apparatus or applies only to the protective clothing and related components.For reference, the total weight of the operator's clothing and equipment can be within 25.0 kg when including gloves, boots, soles, isolating suit, coveralls, hood, bib-and-breast suit, cape, and underwear. This weight does not include the breathing apparatus. Please clarify whether this interpretation aligns with the requirement under this solicitation.A.38:Lot 6, S/N 11: Clarification request accepted. The set weight shall not exceed 25 kg, including all protective clothing components and the lightest available breathing apparatus. TS will be amended accordingly.

New clarification added: Q.37: According to Section III Returnable Bidding Forms, Form C Technical Bid Form, please provide clarification regarding Lot 6, Product Specifications No. 9 and No. 12. Product Specification No. 9 requires Level A or Level B according to US standards or European equivalents, and Product Specification No. 12 requires testing in accordance with EN 1073-1 or EN 1073-2 as protective clothing against radioactive contamination.According to OSHA (Occupational Safety and Health Administration) and EPA (Environmental Protection Agency) standards, Level A, which is the highest level of protection, includes a fully gas-tight suit equipped with a self-contained breathing apparatus (SCBA) inside the suit and provides complete protection against chemical, radiation, biological, and gas exposure. Such suits are used in radiation emergencies, nuclear power plant accidents, and in situations involving radioactive gases, dust, and vapors. Typical applications include entry into nuclear reactor areas, chemical emergency response operations, and environments with high concentrations of toxic or radioactive substances.Please confirm whether a radiation protection suit that meets the Level A protection characteristics described above and complies with GOST R 53264-2009 would be considered acceptable under this solicitation.A.37:Lot 6, S/N 9: Clarification request accepted. The offered protective suit fully meets Level A/B requirements according to US, European standards, and GOST R 53264-2009.

New clarification added: Q.36:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Product Specification No. 8 under Lot 6. The technical specifications require MOOP Class 3 and above.MOOP Class 3 suits are used in the most radiation-hazardous areas, including nuclear power facilities and emergency situations, and provide operator protection from ionizing radiation (gamma and beta radiation), radioactive dust, heat, water, and chemical aerosols.Please confirm whether, under this solicitation, it would be acceptable to offer a radiation protection suit that provides protection from ionizing radiation and high temperatures; is intended for use in reconnaissance, firefighting, and accident response at nuclear power plants and other radiation-hazardous facilities; and also provides protection against water containing surfactants, short-term exposure to superheated steam, and open flame, but does not hold an official MOOP Class 3 certificate, while meeting the functional performance requirements associated with MOOP Class 3.A.36:Lot 6, S/N 8: Clarification request not accepted. MOOP Class 3 certification is mandatory; products without an official certificate will not be accepted. TS will be amended to specify "MOOP Classification: MOOP 3 or higher, certified."

New clarification added: Q.35:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Lot 6: Radiation Protection Suit. Requirements for the breathing apparatus are not specified. Please clarify what type of breathing apparatus is expected under this solicitation. We can supply breathing cylinders and transparent masks rated for 60 to 120 minutes of operation. Cylinders rated for 120 minutes weigh 17–18 kg, while those rated for 60 minutes weigh 11–13 kg. Please review this requirement, as the breathing apparatus is an integral part of the protective suit, and complete protection cannot be achieved without it.A.35:Lot 6, Breathing apparatus: Breathing apparatus shall be provided with the radiation protection suit. The lightest available cylinder is required.

New clarification added: Q.34:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Lot 7. Please confirm the calibration requirements under this solicitation, including the number of calibration points and the radionuclides to be used.A.34:Lot 7: Calibration shall be performed using the following radionuclides: Cs-134, Cs-137, Ru-103, Ru-106, Co-60, I-129, I-131, Ir-192, Am-241.

New clarification added: Q.33:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Item 13 of Lot 7. Please indicate the key required characteristics of the HPGe semiconductor detector, including the energy range of the detected photon radiation, relative detection efficiency, energy resolution, and Peak-to-Compton ratio.A.33:Lot 7, S/N 13: Clarification request accepted and will be amended. The HPGe detector shall have an energy resolution of at least 1 keV in the 30–300 keV range and a full gamma energy range of 30 keV to 3 MeV.

New clarification added: Q.32:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Item 36 of Lot 7. All semiconductor detectors (SCDs) based on high-purity germanium (HPGe) crystals require cooling of the HPGe crystal to temperatures close to liquid nitrogen in order to achieve operational conditions. Please confirm that the cooling system of the purchased gamma spectrometer must use liquid nitrogen as a coolant and that it must include a built-in nitrogen vapor liquefier, ensuring that the system requires refilling with liquid nitrogen no more than once per year.A.32:Lot 7, S/N 36: Clarification request accepted and will be amended. Cooling system for HPGe detectors shall use liquid nitrogen with a built-in nitrogen vapor liquefier.

New clarification added: Q.31:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Item 19 of Lot 7. Please confirm whether the detection unit of the purchased gamma spectrometer is required to be housed inside a lead shield in order to suppress external gamma-radiation background and enable the measurement of ultra-low concentrations of radionuclides.A.31Lot 7, S/N 19: Clarification request accepted and will be amended. The detection unit shall be housed inside a lead-shielded low-background chamber.

New clarification added: Q.30:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Clauses 7–8 of Lot 7. Please confirm whether the gamma spectrometric equipment should be portable and capable of performing in situ measurements, or whether it is intended to be used as a tabletop (stationary) version.A.30:Lot 7, S/N 7–8: Clarification request accepted and will be amended. The equipment will be stationary, tabletop version; in-situ measurements and portability are not required.

New clarification added: Q.29:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, please provide clarification regarding Lot 7, Item 5. Please confirm the geometry and dimensions of the samples to be examined by the device.A.29:Lot 7, S/N 5: Sample geometry and dimensions: Marinelli 1 L, Petri 0.5 L, 0.25 L.

New clarification added: Q.28:According to Section III – Returnable Bidding Forms, Form C: Technical Bid Form, we kindly request clarification regarding Lot 7, Item Clause 5. Please confirm the intended units of measurement for the purchased device. In particular, kindly clarify whether the gamma spectrometer is expected to be used for determining radionuclide concentrations in food samples, emergency response samples, environmental monitoring samples, or similar types of samples, and whether the results should be expressed in Bq/kg or Bq/g.A.28:Lot 7, S/N 5: Result units will be Bq/kg.

New clarification added: Q.26:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #10, S/N 32 states: “Mandatory consumables.” Please clarify that a sufficient quantity must be supplied for 500 measurements, as some disposable consumables require a minimum of 500 units.A.26:Lot 10, S/N 32: Clarification request accepted and will be amended. The supplier must provide consumables sufficient for 1000 measurements. A list of spare parts and consumables must be submitted in the bid and their cost included in the tender offer.

New clarification added: Q.25:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #10, S/N 12 states: “Gamma Effective Dose Rate Measurement.” Please clarify that for radon/thoron monitoring, gamma effective dose rate (EDR) measurement is optional, and proposals for radiometers without this feature should still be considered, as EDR measurement is not a required function for the intended application.A.25:Lot 10, S/N 12: Clarification request accepted and will be amended. The measurement of the gamma effective dose rate (EDR) is optional.

New clarification added: Q.24:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 1 states: “Equipment used for measurement of gamma radiation in the human body.” Please clarify that if the detector is replaced, the name “Whole Body Gamma Spectrometer” should be updated to “Whole Body Counter.”A.24:Lot 11, S/N 1: Clarification request not acceptable. The end-user confirms that a “Whole Body Gamma Spectrometer” is required for the measurement of gamma radiation in the human body. Renaming it to “Whole Body Counter” is not acceptable.

New clarification added: Q.23:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 22 states: “IC-63 method and charcoal sample counting for radon.” Please clarify whether this requirement can be deleted, as IC-63 and charcoal sample counting are laboratory methods for measuring radon and its daughter nuclides, not part of whole-body spectrometer (WBC) functionality. WBC systems measure gamma radiation in the human body, do not use carbon-based geometries, and this requirement effectively limits competition by tying procurement to specific models or manufacturer methods. Deletion of this item is requested as it is not related to WBC functionality.A.23:Lot 11, S/N 22–23: Clarification request accepted. The requirements for radon-measurement kits (including IC-63 geometry) are removed.

New clarification added: Q.22:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 20 states: “Energy-calibration check source: Cs-137, K-40.” Please clarify whether an equivalent Eu-152 multi-energy standard source can be used instead, as Eu-152 contains gamma lines from 122 to 1408 keV covering the same energy range, allows for multi-point energy calibration, is accepted in international practice (IEC, ISO), eliminates methodological errors from using multiple separate sources, and is fully compatible with the instrument manufacturer’s recommended reference phantom. Confirmation is requested on the suitability of Eu-152 as an equivalent solution to meet the Technical Specifications.A.22:Lot 11, S/N 20: Clarification request accepted and will be amended. The energy calibration check source may be Cs-137 or an equivalent multi-energy source (e.g., Eu-152), providing comparable or enhanced energy calibration capabilities.

New clarification added: Q. 21:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 17 states: “Power supply, amplifier and ADC integrated.” Please clarify whether integration of these components is mandatory, as the presence or absence of integration is a manufacturer-specific design feature and does not affect metrological characteristics, accuracy, measurement ranges, stability, or functionality. Most modern devices of a similar class implement these components separately in compliance with international practice (IEC/IAEA). The requirement to integrate these modules may artificially limit competition by excluding equipment that meets all specifications in functionality, accuracy, and performance but has a different design. If integration is not mandatory, we request that this design restriction be removed while retaining only the functional specifications of the device.A.21:Lot 11, S/N 17: Clarification request accepted and will be amended. Integration of the power supply, amplifier, and ADC is optional, provided that all functional specifications and metrological performance of the device are met.

New clarification added: Q.20:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 16 states: “Scintillation detector unit: NaI (Tl) or equivalent.” Please clarify that if changes are made to clause 3 regarding the detector replacement, corresponding adjustments should be made to this point as well.A.20:Lot 11, S/N 16: Clarification request accepted. The detector unit shall be a high-purity germanium (HPGe) detector or equivalent.

New clarification added: Q.19:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 15 states: “Maximum weight: 120 kg.” Please clarify whether this requirement can be removed or increased to 300–5000 kg, as equipment of this class is inherently heavy due to shielding, detectors, and safety components.A.19:Lot 11, S/N 15: Clarification request accepted. The weight range will be amended to 120–350 kg.

New clarification added: Q.18:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 6 states:  "Self-tests need to use built-in LEDs.” Please clarify whether this requirement can be excluded, as it applies only to certain models and does not affect core functionality or accuracy.A.18:Lot 11, S/N 6: Clarification request noted. Self-tests shall be performed using the device’s built-in LEDs. Suppliers may implement equivalent methods, provided the core performance and accuracy of the whole-body spectrometer are maintained.

New clarification added: Q.17:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, S/N 5 states: “With Automatic correction for sample density.” Please clarify whether this requirement can be removed as optional, as this feature is not standard for whole-body spectrometers measuring human gamma radiation.A.17:Lot 11, S/N 5: Clarification request noted. Automatic correction for sample density shall be implemented through the PC/software interface. Suppliers may implement equivalent methods, provided the core performance and accuracy of the whole-body spectrometer are maintained.

New clarification added: Q.16:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 3 states: “Detector type: [existing requirement].” Please clarify whether the detector type can be replaced with a high-purity germanium (HPGe) detector, and confirm the possibility of a vertical configuration where a person walks through.A.16:Lot 11, S/N 3: Clarification request accepted. The device shall use a high-purity germanium (HPGe) detector. The end-user’s primary interest is the accurate assessment of radionuclide accumulation in internal human organs (e.g., iodine isotopes in the thyroid).

New clarification added: Q.15:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 22-23 states: “Radon-measurement kits, IC-63 charcoal-sample geometries, and calibrations for user-defined sample geometries.” Please clarify whether these requirements can be removed, as they are not achievable for a device designed for in-vivo activity assessment.A.15:Lot 11, S/N 22–23: Clarification request accepted. The requirements for radon-measurement kits (including IC-63 geometry) and calibrations for user-defined geometries are removed.

New clarification added: Q.14:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 20 states: “Energy-calibration check source: Cs-137, K-40.” Please clarify whether this can be limited to Cs-137 only, removing K-40 and any additional isotopes from the requirement.A.14:Lot 11, S/N 20: Clarification request accepted. The energy calibration check source will be limited to Cs-137 only.

New clarification added: Q.13:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11, please specify the exact radionuclides intended to be measured with the device. Clarification is required to select the correct model.A.13:Lot 11, New S/N: The device is used for the identification of specific radionuclides in the human body (whole body: Cs-137; thyroid: I-131; lungs: Co-60, Cs-137, Mn-54, Cr-51).

New clarification added: Q.12:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 8 states: “Validated measurement geometries include Marinelli beakers and Petri dishes.” Please clarify whether these geometries can be removed from the specification, as devices designed to measure human body activity cannot operate with these containers and would not produce valid results.A.12:Lot 11, S/N 8: Clarification request accepted. The requirement for validated measurement geometries (Marinelli beakers and Petri dishes) will be removed.

New clarification added: Q.11:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Whole Body Gamma Spectrometer), S/N 5-6 states: “This function is implemented at the device level.” Please clarify that the function is implemented at the PC level, with automatic correction for sample density through the software interface and all self-tests relying on the device’s built-in LEDs.A.11:Lot 11, S/N 5–6: Clarification request accepted. Automatic correction for sample density will be specified as implemented at the PC/software interface, and self-tests will be specified as performed using the device’s built-in LEDs.

New clarification added: Q.10:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #4 (Type 2 Dosimeter), S/N 3 states: “Capability for gamma-radionuclide identification.” Please clarify whether this requirement can be fully removed, as gamma-radionuclide identification represents a different functional class from dose-rate and survey instrumentation and requires spectral-grade detectors, stabilization modules, reference libraries, and high-resolution analysis chains, none of which align with the operational scope of the tender. Including radionuclide identification introduces non-essential complexity, shifts the design toward spectrometric architecture, increases cost, weight, power consumption, calibration, and maintenance, and does not provide practical benefit for the stated use cases. For technical consistency and feasibility, removal of this requirement is requested.A.10:Lot 4, S/N 3: Clarification request accepted. The requirement for radionuclide identification and express activity assessment will be removed from the Technical Specifications.

New clarification added: Q.9:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #4 (Type 2 Dosimeter), S/N 11 states: “Detection time for 137Cs (10 kBq, 5 cm): ≤2 s.” Please clarify whether this requirement can be expanded to ≤5 s, as for this activity level and geometry a 2-second limit is unnecessarily restrictive and does not reflect realistic counting statistics for equipment of this class, while a 5-second threshold preserves measurement reliability without compromising operational performance.A.9:Lot 4, S/N 11: Clarification request accepted. The detection time will be amended to <5 s.

New clarification added: Q.8:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Gamma Scintillation Whole Body Spectrometer), S/N 15 states: “Maximum weight: 120 kg.” Please clarify whether this requirement can be removed or the limit increased to 250 kg, as equipment of this class is inherently heavy due to shielding and detection assemblies, and the current 120-kg cap is not technically realistic for the specified performance level.A.8:Lot 11, S/N 15: The clarification request is accepted. The weight range will be amended to 120–350 kg.

New clarification added: Q.7:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #11 (Gamma Scintillation Whole Body Spectrometer), S/N 9 states: “Energy range up to 3 MeV.” Please clarify whether this requirement can be adjusted to an energy range up to 2 MeV, as this limit aligns with the practical spectrum of operational gamma fields in the intended applications, while extending the upper boundary to 3 MeV does not provide additional functional value and introduces unnecessary specification weight.A.7:Lot 11, S/N 9: The clarification request is accepted. The energy range will be amended to 0.05 to 2.0 MeV, or better.

New clarification added: Q.6:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #5 (Portable Spectrometric Complex), S/N 13 states: “Maximum input statistical load: 1·10⁴ s⁻¹.” Please clarify whether this requirement can be amended to a maximum input statistical load of 1·10⁵ s⁻¹, as increasing this threshold improves count-rate handling, reduces saturation risks, and ensures higher measurement fidelity in elevated fields.A.6:Lot 5, S/N 13: The clarification request is accepted. The maximum input statistical load will be amended to 1·10^5 s⁻¹.

New clarification added: Q.5:According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #3 (Type 1 Dosimeter), S/N 12 states: “Compliance with IEC 61526:2010.” Please confirm whether devices compliant with equivalent standards that meet the same technical requirements are acceptable.A.5:Lot 3, S/N 12: The clarification request is accepted and the specification will be amended accordingly. The device must comply with IEC 61526:2024 or an equivalent international standard, such as IEC 61526:2010.

New clarification added: Q.4: According to Section III Returnable Bidding Forms, Form C Technical Bid Form, Lot #3 (Type 1 Dosimeter), S/N 6 states: “Dose rate range (1ms) at least: 0.1 µSv/h to 10.0 Sv/h." Is a device with a dose-rate range of 0.1 µSv/h to 5 Sv/h acceptable for the intended scope of use?A.4:Lot 3, Line No. 6: The clarification request is accepted. The dose rate range (1 ms) will be amended to 0.1 µSv/h to 5 Sv/h.

New clarification added: Q.3:Please consider the delivery requirements for the following lots: Lot 1 – 130 days to Tashkent customs plus 30 days for delivery and installation; Lot 2 – 220 + 30 days; Lot 3 – 220 + 30 days; Lot 4 – 220 + 30 days; Lot 5 – 220 + 30 days; Lot 6 – 220 + 30 days; Lot 7 – 220 + 30 days; Lot 8 – 270 + 30 days; Lot 9 – 220 + 30 days; Lot 10 – 160 + 30 days; Lot 11 – 220 + 30 days. These are complex laboratory instruments, and an extension of delivery time is requested due to the long growth cycle for detector crystals, shortage of controlled dual-use components (e.g., photomultipliers, SiPMs, high-sensitivity electronic boards) subject to ITAR, EAR, and Euratom regulations, the need for individual factory calibration and metrological verification, additional time for radiation certification and documentation, and requirements for radiation passports, transport/import permits for ionizing sources, and registration with regulatory authorities; even with parallel preparation, these procedures can require significant time.A.3:The delivery period for all lots will be extended to 180 days.

New clarification added: Q.3: Please consider the delivery requirements for the following lots: Lot 1 – 130 days to Tashkent customs plus 30 days for delivery and installation; Lot 2 – 220 + 30 days; Lot 3 – 220 + 30 days; Lot 4 – 220 + 30 days; Lot 5 – 220 + 30 days; Lot 6 – 220 + 30 days; Lot 7 – 220 + 30 days; Lot 8 – 270 + 30 days; Lot 9 – 220 + 30 days; Lot 10 – 160 + 30 days; Lot 11 – 220 + 30 days. These are complex laboratory instruments, and an extension of delivery time is requested due to the long growth cycle for detector crystals, shortage of controlled dual-use components (e.g., photomultipliers, SiPMs, high-sensitivity electronic boards) subject to ITAR, EAR, and Euratom regulations, the need for individual factory calibration and metrological verification, additional time for radiation certification and documentation, and requirements for radiation passports, transport/import permits for ionizing sources, and registration with regulatory authorities; even with parallel preparation, these procedures can require significant time.A.3:The delivery period for all lots will be extended to 180 days.

New clarification added: Q. 2:Is it possible for bids to include alternative proposals for this tender?A. 2:No, bids with alternative proposals are not allowed under this tender. 

New clarification added: Q. 1:Could you please clarify the Financial Capability criterion: If a company had turnovers of $100,000 in 2022, $200,000 in 2023, and $300,000 in 2024, and the total value of the offer is $550,000 for 7 lots, would the company meet the cumulative turnover requirement?A. 1:Qualification for a lot requires annual sales turnover equal to or exceeding the value quoted for that lot in any one of the last three years (2022, 2023, or 2024). For multiple lots, the turnover requirement is cumulative, meaning the sum of the turnover requirements for all selected lots must be met in a single year. Turnover from different years cannot be combined.

New clarification added: Q. 56:Please note that data transfer to a PC is fully supported, and the device itself is capable of storing up to 10,000 measurement results.We kindly request to revise this technical requirement so that it reflects the actual functionality needed — namely, that the measurement results can be displayed on a PC, rather than requiring a spectrum display specifically when the unit is connected.Thank you for your consideration.A. 56:Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q. 45:Item Specification #6:Calibration Pulser.Question:In our equipment: “Reference Pulser: Each chamber in a Spectrometer Module has its own independent pulser. The pulsers associated with all Spectrometer Modules are synchronized, allowing up to 48 chambers to be QA checked simultaneously”. Please delete the excess requirement to provide fair competition.A. 46:Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q. 46:Item Specification #21:i.Range 0 ±100 V, 10 µA;Question:In our equipment: “Bias Supply: Bias control for each Spectrometer Module; the bias for both Detectors/Chambers on a Spectrometer Module is set identically; controlled through the host computer; adjustable in 1 V increments from 0 to 100 V”. Please change the requirement to “Bias Supply: Range from 0 to 100 V” to provide fair competition.A. 46: Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q. 47:Item Specification #26:c. Indicator Front-panel, red LED for each channel shows if the bias is on.Question:In our equipment “There is no RED led, but there is an equivalent indication with GREEN led. One green indicator per chamber to show if Acquisition is ON”. Please delete or rephrase the requirement to provide fair competition.A. 47: Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q. 48:Item Specification #27:Calibration Pulser:Question:In our equipment: “Reference Pulser: Each chamber in a Spectrometer Module has its own independent pulser. The pulsers associated with all Spectrometer Modules are synchronized, allowing up to 48 chambers to be QA checked simultaneously”. Please delete the excess requirement to provide fair competition.A.48:Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q. 51:Item Specification #35:h. Indicator Front-panel, BIAS red LED flashes when pulser is on.Question:In our equipment “There is no RED led, but there is an equivalent indication with GREEN led. One green indicator per chamber to show if Acquisition is ON”. Please delete or rephrase the requirement to provide fair competition.A. 51:Dear Bidder,Please specify in your request for clarification which lot you are referring to.

New clarification added: Q.39:Item Specification #10,11,12,13,14We kindly request a revision of the MDA values stated in the technical specification, specifically:Cs-137: 3 BqTh-232 = 7 BqRa-226 = 8 BqК-40: 40 BqThese requirements apply when there is a protective layer of lead of at least 5 cm and the detector is in direct contact with the sample.These values are not technically achievable under internationally accepted whole-body measurement conditions.According to IAEA, ICRP, and UNSCEAR:The human body itself contains 3000–4000 Bq of natural K-40, which creates an unavoidable internal background.Environmental background radiation (from building materials, soil, cosmic rays, and natural radionuclides such as K-40, Ra-226, Th-232) significantly increases the minimum detectable activity.Therefore, the requested MDAs of 7–8 Bq are far below internationally realistic detection limits and cannot be met by standard whole-body spectrometry systems.We kindly ask the committee to adjust these values to internationally achievable ranges to ensure fair and technically valid evaluation of equipment.Cs-137 = from 1000 to BqTh-232 = from 1000 BqRa-226 = from 1000 BqK-40 = from 3000 Bq A. 39:Dear Bidder,Please specify in your request for clarification which lot you are referring to.