prBAS ISO 13909-7:2027
Coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing
General information
Status:Project
Number of pages:46
Adoption method:Korice
Language:engleski
Edition:1.
Realization date:21.10.2026
Forseen date for next stage code:30.10.2026
Technical committee:BAS/TC 27, Mining
ICS:
75.160.10, Solid fuels
73.040, Coals
73.040, Coals
Abstract
This document defines methods 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.
In this document, formulae are developed which link the variables that contribute to overall sampling precision.
Lifecycle
...
Original document and degree of correspondence
ISO 13909-7:2025, identical
Relation to BAS standards
Work material
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