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1. Sampling
1.1 Standards
Standards are definitions written and approved by consensus by national and then international technical committees, specifying all the conditions that a quality system must meet to obtain the required precision in terms of final results and acceptable repeatability and reproducibility criteria.
The main international organization bringing together experts from all member countries is the Geneva-based ISO (International Organization for Standardization), which has a technical committee where the various texts are drawn up, and is structured into sub-groups. For the solid fossil fuels sector, the TC 27 committee comprises :
SC1 sub-working group: coal preparation, terminology and yield;
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Reference standards
Warning: revision dates are the latest available at the time of publication of this booklet. Standards are revised at regular intervals, so it's important to check for the latest edition.
- Standard terminology of coal and coke. - ASTM D 121 - 2015
- Standard classification of coals by rank. - ASTM D 388 - 2017
- Classification des charbons. - ISO 11760 - 2005
- Solid mineral fuels....
Organizations
French Standards Association (Afnor)
ASTM International
British Standards Institution (BSI)
...Companies
Bulk Testing International (BTI)
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