ASTM UOP 873 : 1986
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Noble Metals and Modifiers in Catalysts by ICP-AES
Hardcopy , PDF
11-11-2014
English
29-07-2002
Important note : Users cannot be edited or removed once added to your Multi user PDF.Specifies a method for determining platinum, rhodium and rhenium, in fresh and regenerated catalysts composed of alumina or silica/alumina by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES).
| DocumentType |
Standard
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| Pages |
6
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| PublisherName |
American Society for Testing and Materials
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| Status |
Withdrawn
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This method is for determining platinum, rhodium and rhenium, in fresh and regenerated catalysts composed of alumina or silica/alumina by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES). Additionally, modifiers such as tin, indium, lithium, potassium, cerium and lanthanum can also be determined. Platinum and rhenium can be determined within the concentration range of 0.1 to 1.0 mass-% when a 1-g sample of catalyst is used for the analysis, while rhodium can be determined down to 0.01 mass-%. The tin, indium and lithium concentration range is generally 0.1 to 0.7 mass-%. Potassium, cerium and lanthanum can be determined from 0.5 to several mass-%. The method is sufficiently flexible to add more elemental analyses if needed.
| ASTM UOP303 : 2007 | Impurities in Catalysts by ICP-OES |
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