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ASTM B 671 : 1981 : R1999 : EDT 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for Refined Iridium
Hardcopy , PDF
11-11-2014
English
10-05-1999
CONTAINED IN VOL. 02.04, 2017 Describes refined iridium as sponge and powder in two grades as follows: - Grade 99.80 (UNS PO6100) - Iridium having a purity of 99.80%. - Grade 99.90 - Iridium having a purity of 99.90%.
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