1333ND25QNB640341 MinSpecs-MassComparator-FINAL.pdf
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- Attached to
- MASS COMPARATOR Federal contract opportunity
- Solicitation number
- 1333ND25QNB640341
About this file
This Request for Quote (RFQ) is issued by NIST's Material Measurement Laboratory's Chemical Science Division's Gas Sensing Metrology Group (GSMG) to procure a new mass comparator. The critical requirements include a mass comparator with 64 kg maximum capacity, 10 mg or less readability, 35 mg repeatability at maximum load, typical repeatability less than 20 mg, linearity better than 50 mg, and settling time under 30 seconds. The replacement is needed because the current Mettler Toledo model SR64001 is discontinued and no longer serviced.
The contractor must deliver one mass comparator (CLIN 0001) to NIST at 100 Bureau Drive, Building 227, Gaithersburg, MD 20899 within 180 days of purchase order acceptance. Delivery is restricted to 8:30am to 5:00pm Monday through Friday, excluding Federal Holidays. The procurement supports GSMG's Standard Reference Materials (SRMs) and NIST-Traceable Reference Materials (NTRMs) programs, which require accurate gravimetric analysis for primary gas standard materials mixture blending.
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| File | Type | Posted |
|---|---|---|
| 1333ND25QNB640341 RFQ-FINAL.pdf |
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Text version
RFQ NO. 1333ND25QNB640341 MINIMUM SPECIFICATIONS
I. BACKGROUND
NIST’s Material Measurement Laboratory’s Chemical Science Division’s, Gas Sensing Metrology Group (GSMG) is committed to supporting the gas Standard Reference Materials (SRMs) and NIST-Traceable Reference Materials (NTRMs) programs. A key element of these programs is the accurate determination of the amount-of-substance using gravimetric analysis.
To support the SRMs and NTRMs programs, GSMG is maintaining groups of Primary gas Standard Materials (PSMs). A mass comparator is used to weigh cylinders up to 140 lbs. for PSM gas mixture blending using gravimetry method. The current mass comprator (Mettler Toledo, model # SR64001) is a discontinued model. Mettler Toledo does not provide any service to this old model. In order to maintain the quality system at GSMG, GSMG requires a new mass comparator.
II. SPECIFICATIONS
The Contractor shall provide mass comparator (Contract Line Item Number (CLIN) 0001) shall meet the following minimum requirements:
1. 64 kg max capacity.
2. Readability 10 mg or less.
3. Repeatability at maximum load of 35 mg.
4. Typical repeatability < 20 mg.
5. Linearity better than 50 mg.
6. Settling time less than 30 sec.
III. DELIVERY
The contractor shall deliver CLIN 0001 to:
NIST
100 Bureau Drive Building 227, Gaithersburg, MD 20899
Delivery shall be between the hours of 8:30am to 5:00pm Monday through Friday except for Federal Holidays.
IV. DELIVERABLES
Description Quantity Due Date CLIN 0001 1 Within 180 days of contractor acceptance of purchase order
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