Standard Reference Materials: Handbook for SRM Users

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DIANE Publishing, 1997 - 102 lappuses
This handbook was prepared with the objective of improving the understanding of the basis for the use of Standard Reference Materials (SRMs). While written from the viewpoint of a chemist, the basic concepts described are believed to be applicable to most areas of metrology. The handbook is arranged by section in a logical progression, starting with the basic concepts of precision & accuracy, followed by discussions of the calibration & quality assurance of the measurement process, the use of SRMs to evaluate various kinds of measurements, & the reporting of data with evaluated limits of uncertainty. Charts & tables.

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56. lappuse - UNITS length meter* (m) mass* kilogram (kg) time second (s) electric current ampere (A) thermodynamic temperature^ kelvin (K) amount of substance mole (mol) luminous intensity candela (cd) * The spellings "metre" and "litre" are preferred by ASTM; however, "-er" will be used in the Encyclopedia.
52. lappuse - Quality — the totality of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs.
54. lappuse - standard" is a "[d]ocument approved by a recognized body, that provides, for common and repeated use, rules, guidelines or characteristics for products or related processes and production methods, with which compliance is not mandatory. It may also include or deal exclusively with terminology, symbols, packaging, marking or labelling requirements as they apply to a product, process or production method.
52. lappuse - QUALITY ASSURANCE All those planned and systematic actions necessary to provide adequate confidence that a product or service will satisfy given requirements for quality.
57. lappuse - Exact. Multiplication factor Prefix Symbol 101s exa E 1015 peta P 1012 tera T 109 giga G 106 mega M 103 kilo k 102 hecto h
53. lappuse - RM is defined as a material or substance one or more properties of which are sufficiently well established to be used for the calibration of an apparatus, the assessment of a measurement method, or for assigning values to materials.
50. lappuse - A certified reference material is a "reference material one or more of whose property values are certified by a technically valid procedure accompanied by or traceable to a certificate or other documentation which is issued by a certifying body.
54. lappuse - That quantity of material of proper size for measurement of the property of interest. Test portions may be taken from the gross sample directly, but often preliminary operations such as mixing or further reduction in particle size are necessary.
52. lappuse - In the doctrine of chance, the likelihood of the occurrence of any particular form of an event...
vi. lappuse - Standard Reference Materials: Half Lives of Materials Used in the Preparation of Standard Reference Materials of Nineteen Radioactive Nuclides Issued by the National Bureau of Standards, NBS Misc.

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