ISO-13909-7 Hard coal and coke - Mechanical sampling - Part 7: Methods for determining the precision of sampling, sample preparation and testing

ISO-13909-7 - 2ND EDITION - CURRENT
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In ISO 13909-7:2016, formulae are developed which link the variables that contribute to overall sampling precision. Methods are described for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision. Methods for checking the variance of sample preparation and testing are also described.

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73.040 (Coals Including lignites Coal products, see 75.160.10)

75.160.10 (Solid fuels Including coal products, coke, peat, wood, derivatives of coal pyrolysis, etc. Coals, see 73.040)

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Document Number

ISO 13909-7:2016

Revision Level

2ND EDITION

Status

Current

Publication Date

July 1, 2016

Committee Number

ISO/TC 27/SC 4