ASTM D 7883 : 2019
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
Hardcopy , PDF
02-12-2020
English
31-12-2019
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
D 16
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| DocumentType |
Test Method
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| Pages |
6
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| ProductNote |
THIS STANDARD ALSO REFERS TO OSHA 29 CFR
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1This test method2 covers the determination of the 4-Carboxybenzaldehyde (4-CBA) and p-Toluic acid (p-TOL) in purified terephthalic acid (PTA) by weak anion exchange high performance liquid chromatography (HPLC). This method is applicable for 4-CBA from 2 to 500 mg/kg and for p-TOL from 10 to 500 mg/kg, respectively.
1.2In determining the conformance of the test results using this method to applicable specification, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| ASTM D 7976 : 2014 | Standard Specification for Purified Terephthalic Acid (PTA) |
| ASTM D 6809 : 2002 : R2016 | Standard Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials |
| ASTM D 6809 : 2020 | Standard Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials |
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