GSO ISO 5251:2013
ISO 5251:1981
Gulf Standard
Current Edition
·
Approved on
01 April 2013
Stainless steel butt-welding fittings
GSO ISO 5251:2013 Files
English
25 Pages
Current Edition
Reference Language
USD
162.59
GSO ISO 5251:2013 Scope
This International Standard specifies the method for determining the grindability index of hard coal1) using the Hardgrove machine. It also specifies the procedure for calibrating the test machine and for preparing the standard reference coal samples.
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