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ISO 13909-7:2025
Coal and coke
Mechanical sampling
Mechanical sampling
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Summary
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.
Notes
40.20 : Mise au vote du DIS: 12 semaines
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 07/22/2025 |
| Edition | 3 |
| Page Count | 42 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
Replaces
23/06/2016
Superseded
, Confirmed
, Has Draft
Historical
Previous versions
23/06/2016
Superseded
, Confirmed
, Has Draft
Historical