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Glavni meni

ISO 13909-7:2025

Coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing
22. 7. 2025.

Опште информације

60.60     22. 7. 2025.

ISO

ISO/TC 27/SC 4

Međunarodni standard

73.040     75.160.10  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 13909-7:2016

TRENUTNO

OBJAVLJEN
ISO 13909-7:2025
60.60 Standard objavljen
22. 7. 2025.