ASTM D 3943 :2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Total Molybdenum in Fresh Alumina-Base Catalysts
Hardcopy , PDF
11-11-2014
English
01-04-2010
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 05.05, 2016 Defines 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].
| Committee |
D 32
|
| DocumentType |
Test Method
|
| Pages |
4
|
| ProductNote |
Reconfirmed 2010
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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.
| ASTM D 7442 : 2016 : REDLINE | Standard Practice for Sample Preparation of Fluid Catalytic Cracking Catalysts and Zeolites for Elemental Analysis by Inductively Coupled Plasma Optical Emission Spectroscopy |
| ASTM E 507 : 2013 : REDLINE | Standard Test Method for Determination of Aluminum in Iron Ores by Flame Atomic Absorption Spectrometry |
| ASTM E 173 : 1993 | Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1997) |
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