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


Importancia y uso:

5.1 This test method can be used for manufacturing quality control or manufacturing quality assurance purposes to determine the CEG concentration of PET yarns used in either geogrids or geotextiles.

5.2 The CEG content of the PET yarns may have an influence on the properties of the geosynthetic, such as its hydrolysis resistance. The lower the value, the higher the hydrolysis resistance of the yarns.

5.3 This test does not set the limiting (maximum) value for various engineering applications. Such a specification is a decision of the design engineer, owner, and/or regulator.

Subcomité:

D35.02

Referida por:

D8105-18, D6389-23

Volúmen:

04.13

Número ICS:

59.080.20 (Yarns)

Palabras clave:

carboxyl end group content; CEG; geogrid yarns; geotextile yarns; PET; polyethylene terephthalate;

$ 954

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Norma
D7409

Versión
15(2020)

Estatus
Active

Clasificación
Test Method

Fecha aprobación
2020-12-01