
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
BS ISO 13909-7:2001 - Identical
NEN ISO 13909-7:2002 - Identical
KS E ISO 13909-7:2005 - Identical
NF ISO 13909-7:2005 - Identical
PN ISO 13909-7:2005 - Identical