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Glavni meni

ISO 13909-7:2016

Hard coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing
23. 6. 2016.
95.99   Povučen   22. 7. 2025.

Опште информације

95.99     22. 7. 2025.

ISO

ISO/TC 27/SC 4

Međunarodni standard

73.040     75.160.10  

engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 13909-7:2001

TRENUTNO

POVUČEN
ISO 13909-7:2016
95.99 Povučen
22. 7. 2025.

REVIDIRAN OD

OBJAVLJEN
ISO 13909-7:2025