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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 ...
Industry quality standards require materials to be tested at the manufacturer and the results of these tests be submitted through a report, also called a mill sheet, mill certificate or mill test certificate (MTC). The only way to trace a steel plate back to its mill sheet is the heat number.
A certified reference material is a particular form of measurement standard. Reference materials are particularly important for analytical chemistry and clinical analysis. [2] Since most analytical instrumentation is comparative, it requires a sample of known composition (reference material) for accurate calibration.
In the case of a tested product/material/sample, the recipient of the COA will be the entity that ordered the analysis or mandated the test via regulation, as with cannabis testing. If a regulatory body mandated the test, they will designate how the results should be delivered, whether physically or electronically.
After testing, the testing laboratory issues a confidential test report to the manufacturer. If the product passes the testing required for certification, the items in the test that passed are given a certification listing, which describes the product(s) that were tested, the application, and maximum and minimum tolerances for all components.
One process for X-ray fluorescence assay involves melting the material in a furnace and stirring to make a homogeneous mix. Following this, a sample is taken from the centre of the molten sample. Samples are typically taken using a vacuum pin tube. [4] The sample is then tested by X-ray fluorescence spectroscopy. Metallurgical assay is ...
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The standard provides with the document kind classification code (DCC) a structured letter-code for the classification of any kind of document.. A public access database IEC 61355 DB [3] is available in order to facilitate the individuation of the correct code to be applied to a document