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2. Precision measurement equipment laboratory - Wikipedia

   en.wikipedia.org/wiki/Precision_Measurement...

   A Precision Measurement Equipment Laboratory (PMEL) is a United States Air Force (USAF) facility in which the calibration and repair of test equipment takes place. This practice is also known as metrology: the science of measurement. Metrology is defined as the science of weights & measures, while a PMEL is the place where technicians perform ...

3. ISO/IEC 17025 - Wikipedia

   en.wikipedia.org/wiki/ISO/IEC_17025

   In most countries, ISO/IEC 17025 is the standard for which most labs must hold accreditation in order to be deemed technically competent. In many cases, suppliers and regulatory authorities will not accept test or calibration results from a lab that is not accredited. Originally known as ISO/IEC Guide 25, ISO/IEC 17025 was initially issued by ...

4. Deadweight tester - Wikipedia

   en.wikipedia.org/wiki/Deadweight_tester

   A dead weight tester (DWT) is a calibration standard method that uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are secondary standards which means that the pressure measured by a deadweight tester is defined through other quantities: length, mass and ...

5. National Conference on Weights and Measures - Wikipedia

   en.wikipedia.org/wiki/National_Conference_on...

   Website. www.ncwm.com. The National Conference on Weights and Measures (NCWM) is a not-for-profit corporation dedicated to developing the United States technical standards for weights and measures in commerce. The organization's official mission is "Ensuring Equity and Uniform Standards in a Changing Marketplace."

6. Calibration - Wikipedia

   en.wikipedia.org/wiki/Calibration

   The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or ...

7. Metrology - Wikipedia

   en.wikipedia.org/wiki/Metrology

   Metrology is defined by the International Bureau of Weights and Measures (BIPM) ... harmonised legislation for certification and calibration. [49] ...