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2. Alden Research Laboratory - Wikipedia

   en.wikipedia.org/wiki/Alden_Research_Laboratory

   Alden is the largest independent supplier of National Institute of Standards and Technology traceable water flow meter calibrations in the United States. The facility has two calibration laboratories with several weigh tanks with capacities from 1,000 to 100,000 lb (45,000 kg).

3. Certified reference materials - Wikipedia

   en.wikipedia.org/wiki/Certified_reference_materials

   In addition, commercial producers adhering to criteria and protocols defined by NIST may use the trademark [13] "NIST traceable reference material" to designate certified reference materials with a well-defined traceability linkage to existing NIST standards for chemical measurements. [14] [15]

4. DM3 density meter - Wikipedia

   en.wikipedia.org/wiki/Dm3_density_meter

   This in-line section of pipe calculates the percentage of dry solids, wet density or wet and dry mass flow units. When coupled with compatible volumetric flow meters and processing units, this system gives a true value for density and mass flow. [2] The DM3 is a bi-directional unit which allows media to flow continuously through either ends.

5. National Institute of Standards and Technology - Wikipedia

   en.wikipedia.org/wiki/National_Institute_of...

   NIST had an operating budget for fiscal year 2007 (October 1, 2006 – September 30, 2007) of about $843.3 million. NIST's 2009 budget was $992 million, and it also received $610 million as part of the American Recovery and Reinvestment Act. [18] NIST employs about 2,900 scientists, engineers, technicians, and support and administrative personnel.

6. Metrology - Wikipedia

   en.wikipedia.org/wiki/Metrology

   The four primary reasons for calibrations are to provide traceability, to ensure that the instrument (or standard) is consistent with other measurements, to determine accuracy, and to establish reliability. [2] Traceability works as a pyramid, at the top level there is the international standards, which beholds the world's standards.

7. Separator (oil production) - Wikipedia

   en.wikipedia.org/wiki/Separator_(oil_production)

   According to Yoder (2000), [15] the types of flowmeters used as master meters include turbine meters, positive displacement meters, venturi meters, and Coriolis meters. In the U.S., master meters are often calibrated at a flow lab that has been certified by the National Institute of Standards and Technology, (NIST). NIST certification of a ...