Standard Test Method for Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-12-2020

Publisher

American Society for Testing and Materials

1.1This test procedure is based significantly on the GRI GG7 test procedure, Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns.

1.2 This test method is used to determine the concentration, in mmol/kg, of carboxyl end groups (CEG) found in poly(ethylene terephthalate) (PET) yarns by titration.

1.3This test is applicable to geogrid yarns that are made from PET resin.

Note 1:This test is also applicable to high-strength geotextile yarns that are made from PET and are used in reinforcement applications.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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.

1.6This 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.

Committee	D 35
DocumentType	Test Method
Pages	3
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 7409 : 2015

ASTM D 123 : 2019	Standard Terminology Relating to Textiles
ASTM D 123 : 2023	Standard Terminology Relating to Textiles
ASTM D 123 : 2001	Standard Terminology Relating to Textiles