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ASTM B561-94(1999)e1

Historical Revision

Standard Specification for Refined Platinum

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1.1 This specification covers refined platinum as sponge, cast bar, and wrought forms (Note 1) in two grades as follows:

1.1.1 Grade 99.95 -Platinum having a purity of 99.95%, min, and

1.1.2 Grade 99.99 -Platinum having a purity of 99.99% min.

Note 1-Other forms of unfabricated platinum of commerce are not to be excluded under this specification. Note 2-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 off method of Practice E29.

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


SDO ASTM: ASTM International
Document Number B561
Publication Date May 10, 1999
Language en - English
Page Count 2
Revision Level 94(1999)e1
Supercedes
Committee B02.05
Publish Date Document Id Type View
April 1, 2023 B0561-23 Revision
May 10, 1999 B0561-94R99E01 Revision
Nov. 1, 2018 B0561-94R18 Reaffirmation
Nov. 1, 2012 B0561-94R12 Reaffirmation
May 1, 2005 B0561-94R05 Reaffirmation