Standard Historical Last Updated: Dec 31, 2015 Track Document
ASTM D3943-10

Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts

Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts D3943-10 ASTM|D3943-10|en-US Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts Standard new BOS Vol. 05.06 Committee D32
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Significance and Use

This test method sets forth a procedure by which catalyst samples can be compared either on an interlaboratory or intralaboratory basis. It is anticipated that catalyst producers and users will find this method of value.

Scope

1.1 This test method covers the determination of molybdenum in alumina-base catalysts and has been cooperatively tested at molybdenum concentrations from 8 to 18 weight %, expressed as MoO3. Any component of the catalyst other than molybdenum such as iron, tungsten, etc., which is capable of being oxidized by either ferric or ceric ions after being passed through a zinc-amalgam reductor column (Jones reductor) will interfere.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 05.06
Developed by Subcommittee: D32.03
Pages: 4
DOI: 10.1520/D3943-10
ICS Code: 71.040.30