NEN-ISO 13909-8
Hard coal and coke - Mechanical sampling - Part 8: Methods of testing for bias
inactive
| Organization: | NEN |
| Publication Date: | 1 February 2002 |
| Status: | inactive |
| Page Count: | 42 |
| ICS Code (Solid fuels): | 75.160.10 |
| ICS Code (Coals): | 73.040 |
scope:
Sets out principles and procedures for testing the bias of test samples of hard coals or cokes, taken in accordance with other parts of this standard. 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 mesured on the same set of samples is substantially greater than for a single variable. While several variables may be measured, the variable on which the outcome of the test will be governed shall be designated in advance.
Document History
September 1, 2016
Hard coal and coke - Mechanical sampling - Part 8: Methods of testing for bias
ISO 13909-8 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.
NEN-ISO 13909-8
February 1, 2002
Hard coal and coke - Mechanical sampling - Part 8: Methods of testing for bias
Sets out principles and procedures for testing the bias of test samples of hard coals or cokes, taken in accordance with other parts of this standard. The use of univariate statistical methods only...