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BS EN ISO 4491-2:2023 – TC

BS EN ISO 4491-2:2023 – TC

$134.27

Tracked Changes. Metallic powders. Determination of oxygen content by reduction methods – Loss of mass on hydrogen reduction (hydrogen loss)

Published By Publication Date Number of Pages
BSI 2023 40
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This document specifies a method for the determination of the relative loss of mass which a metallic powder undergoes when heated in a stream of pure dry hydrogen under specified conditions. The purpose of this test is to evaluate a chemical powder characteristic which is of importance to the powder metallurgical industry. The test is not intended as a means for the determination of the content of specific elements (see Annex A and ISO 4491-1). The test method is applicable to unalloyed, partially alloyed and completely alloyed powders of the metals listed in Table 1 (see 7.2.1). It is not applicable to lubricated powders or to mixtures of metal powders.

PDF Catalog

PDF Pages PDF Title
26 undefined
28 European foreword
Endorsement notice
30 Foreword
31 1 Scope
2 Normative references
3 Terms and definitions
4 Reagents and materials
5 Apparatus
5.1 General
5.2 Balance
32 5.3 Furnace
5.4 Gas-tight tube
5.5 Thermocouple
5.6 Boat
5.7 Supply unit
33 6 Sampling
7 Procedure
7.1 General
7.2 Test procedure
35 8 Calculation and expression of test results
9 Precision
36 10 Test report
37 Annex A (informative) Interpretation of results
38 Bibliography

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BS EN ISO 4491-2:2023 - TC
$134.27