ISO 13909-7:2016现行
Hard coal and coke - Mechanical sampling Part 7: Methods for determining the precision of sampling, sample preparation and testing
出版：International Organization for Standardization
专家解读视频
In this part of ISO 13909, formulae are developed which link the variables that contribute to overall sampling precision.
BS ISO 13909-7 : 2001 - Identical
NEN ISO 13909-7 : 2016 - Identical
SS-ISO 13909-7 : 2019 - Identical
SANS 13909-7 : 1ED 2001(R2012) - Identical
BS ISO 13909-7 : 2001 - Identical
SS-ISO 13909-7 : 2019 - Identical
PN ISO 13909-7 : 2005 - Identical
NF ISO 13909-7 : 2005 - Identical
BIS IS 16143-7 : 2014 - Identical
GOST ISO 13909-7 : 2013 - Identical
NEN ISO 13909-7 : 2016 - Identical
