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ASTM International - ASTM D3943-10

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

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Organization: ASTM International
Publication Date: 1 April 2010
Status: inactive
Page Count: 4
ICS Code (Chemical reagents): 71.040.30
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... View More

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.

Document History

June 1, 2021
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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...
December 1, 2015
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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...
ASTM D3943-10
April 1, 2010
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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...
April 1, 2004
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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 MoO 3 . Any...
April 10, 2000
Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
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 MoO 3 . Any...
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