ISO-13909-8 › Historical Revision Information
Hard coal and coke - Mechanical sampling - Part 8: Methods of testing for bias

ISO-13909-8 - 1ST EDITION - SUPERSEDED
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This part of ISO 13909 sets out principles and procedures for testing the bias of test samples of hard coals or cokes, taken in accordance with other parts of ISO 13909. The use of univariate statistical methods only is addressed.

The user is cautioned that the chance of falsely concluding that there is a bias, when no bias exists in any one of several variables measured on the same set of samples, is substantially greater than for a single variable. While several variables may be measured, the single variable on which the outcome of the test will be governed shall be designated in advance.

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To find similar documents by classification:

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 13909-8:2001

Revision Level

1ST EDITION

Status

Superseded

Publication Date

Dec. 15, 2001

Committee Number

ISO/TC 27/SC 4