ISO 13909-7:2016

Hard coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing

Publication date: 23 qer 2016

95.99 Withdrawal of Standard 22 korr 2025

General information

Current stage: 95.99 Effective date: 22 korr 2025

Originator: ISO

Owner: ISO/TC 27/SC 4

Type: International Standard

ICS: 73.040 75.160.10

Gjuha: anglisht

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Statusi: Shfuqizuar

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 13909-7:2001

NOW

WITHDRAWN
ISO 13909-7:2016
95.99 Withdrawal of Standard
22 korr 2025

REVISED BY

PUBLISHED
ISO 13909-7:2025