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2. ISO/IEC 17025 - Wikipedia

   en.wikipedia.org/wiki/ISO/IEC_17025

   ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories is the main standard used by testing and calibration laboratories. In most countries, ISO/IEC 17025 is the standard for which most labs must hold accreditation in order to be deemed technically competent.

3. Ruler - Wikipedia

   en.wikipedia.org/wiki/Ruler

   A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]

4. Mill test report (metals industry) - Wikipedia

   en.wikipedia.org/wiki/Mill_test_report_(metals...

   A mill test report (MTR) and often also called a certified mill test report, certified material test report, mill test certificate (MTC), inspection certificate, certificate of test, or a host of other names, is a quality assurance document used in the metals industry that certifies a material's chemical and physical properties and states a product made of metal (steel, aluminum, brass or ...

5. List of ISO standards 16000–17999 - Wikipedia

   en.wikipedia.org/wiki/List_of_ISO_standards_16000...

   ISO 16063-41:2011 Part 41: Calibration of laser vibrometers; ISO 16063-42:2014 Part 42: Calibration of seismometers with high accuracy using acceleration of gravity; ISO 16063-43:2015 Part 43: Calibration of accelerometers by model-based parameter identification; ISO 16063-45:2017 Part 45: In-situ calibration of transducers with built in ...

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. Combination square - Wikipedia

   en.wikipedia.org/wiki/Combination_square

   Combination square rules are made of steel and can be purchased with gradations in metric, imperial, or both metric and imperial. Both faces of the rule have markings, providing four different sets of markings. This allows different sides to have different graduations (eg. 1mm or 0.5mm markings) or units (ie. metric and imperial).