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ASTM D8062-19

(Specification)

Standard Specification for Purified Terephthalic Acid (PTA) with Low p-Toluic Acid

Standard Specification for Purified Terephthalic Acid (PTA) with Low <emph type="ital" >p</emph>-Toluic Acid

SCOPE
1.1 This specification covers purified terephthalic acid (PTA) for use in the production of polyesters for superfine denier fiber.  
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.  
1.3 Consult current OSHA regulations, supplier’s Safety Data Sheets, and local regulations for all materials used in this specification.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This 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.

General Information

Status
Historical
Publication Date
14-Mar-2019
ICS
71.080.40 - Organic acids
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.02 - Oxygenated Aromatics
Current Stage
Ref Project

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ASTM D8062-19 - Standard Specification for Purified Terephthalic Acid (PTA) with Low <emph type="ital" >p</emph>-Toluic AcidASTM D8062-19 - Standard Specification for Purified Terephthalic Acid (PTA) with Low <emph type="ital" >p</emph>-Toluic Acid
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ASTM D8062-19 - Standard Specification for Purified Terephthalic Acid (PTA) with Low <emph type="ital" >p</emph>-Toluic Acid
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D8062 −19
Standard Specification for
1
Purified Terephthalic Acid (PTA) with Low p-Toluic Acid
This standard is issued under the fixed designation D8062; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D7881 Test Method for Determination of
4-Carboxybenzaldehyde and p-Toluic Acid in Purified
1.1 This specification covers purified terephthalic acid
Terephthalic Acid by Capillary Electrophoresis with Re-
(PTA) for use in the production of polyesters for superfine
verse Voltage Mode
denier fiber.
D7882 Test Method for Determination of
1.2 The following applies to all specified limits in this
4-Carboxybenzaldehyde and p-Toluic Acid in Purified
specification: for purposes of determining conformance with
Terephthalic Acid by Capillary Electrophoresis with Nor-
this specification, an observed value or a calculated value shall
mal Voltage Mode
be rounded off to the nearest unit in the last right-hand digit
D7883 Test Method for Determination of
used in expressing the specification limit, in accordance with
4-Carboxybenzaldehyde and p-Toluic Acid in Purified
the rounding-off method of Practice E29.
TerephthalicAcid by WeakAnion Exchange High Perfor-
mance Liquid Chromatography
1.3 Consult current OSHA regulations, supplier’s Safety
Data Sheets, and local regulations for all materials used in this D7884 Test Method for Determination of
4-Carboxybenzaldehyde and p-Toluic Acid in Purified
specification.
Terephthalic Acid by Reverse Phase High Performance
1.4 The values stated in SI units are to be regarded as
Liquid Chromatography
standard. No other units of measurement are included in this
E29 Practice for Using Significant Digits in Test Data to
standard.
Determine Conformance with Specifications
1.5 This standard does not purport to address all of the
E300 Practice for Sampling Industrial Chemicals
safety concerns, if any, associated with its use. It is the
2.2 Other Standards:
responsibility of the user of this standard to establish appro-
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
priate safety, health, and environmental practices and deter-
3
1910.1200
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 p-toluic acid, n—(C H O ) molecular weight, 136.15;
8 8 2
Development of International Standards, Guides and Recom-
white crystalline solid or powder; melting point, 180 °C to
mendations issued by the World Trade Organization Technical
181 °C; abbreviated as p-TOL (CAS #99-94-5).
Barriers to Trade (TBT) Committee.
3.1.2 purified terephthalic acid, n—(C H O ) molecular
8 6 4
2. Referenced Documents
weight, 166.13, whit
...

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Standard Specification for Purified Terephthalic Acid (PTA) with Low p-Toluic Acid

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1.1 This specification covers purified terephthalic acid (PTA) for use in the production of polyesters for superfine denier fiber.  
1.2 The following applies to all specified limits in this specification: for purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.  
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This specification establishes requirements for purified terephthalic acid (PTA) used in the manufacturing of polymers, including the production of polyesters for fiber, filament, yarn, film, coating, bottle and resin applications. For purposes of determining conformance with this specification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit. This specification covers properties and sampling of the material.
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