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ASTM B671-81(1999)e1

Current Revision

Standard Specification for Refined Iridium

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1.1 This specification covers refined iridium as sponge and powder in two grades as follows:

1.1.1 Grade 99.80 -Iridium having a purity of 99.80%.

1.1.2 Grade 99.90 -Iridium having a purity of 99.90%.

Note-For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.


SDO ASTM: ASTM International
Document Number B671
Publication Date May 10, 1999
Language en - English
Page Count 2
Revision Level 81(1999)e1
Supercedes
Committee B02.05
Publish Date Document Id Type View
May 10, 1999 B0671-81R99E01 Revision
Nov. 1, 2021 B0671-81R21 Reaffirmation
April 1, 2017 B0671-81R17 Reaffirmation
Dec. 1, 2010 B0671-81R10 Reaffirmation
May 1, 2005 B0671-81R05 Reaffirmation