ASTM D4937-96(2012)
Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography

Standard No.

ASTM D4937-96(2012)

Release Date

1996

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4937-96(2017)

Latest

ASTM D4937-96(2021)

Scope

This test method is designed to assess the relative purity of production PPDs. These additives are primarily used as antiozonants for tires and other rubber or polymeric products.

Since the results of this test method are based on area normalization, it assumes that all components are eluted from the column and each component has the same detector response. Although this is not strictly true, the errors introduced are relatively small and much the same for all samples; thus, they can be ignored since the intent of the test method is to establish relative purity.

Although trace amounts of “low boilers” are present in production samples, they are disguised by the solvent peak when using packed columns (Procedure A).

1.1 This test method covers the determination of the purity of Class I, II, and III p-phenylenediamine (PPD) antidegradants as described in Classification D4676 by gas chromatography (GC) detection and area normalization for data reduction.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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 D4937-96(2012) Referenced Document

• ASTM D3853 Standard Terminology Relating to Rubber and Rubber Latices-Abbreviations for Chemicals Used in Compounding*， 1997-04-19 Update
• ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries*， 1999-04-19 Update
• ASTM D4676 Standard Classification for Rubber Compounding Materials—Antidegradants*， 2021-11-01 Update
• ASTM E260 Standard Practice for Packed Column Gas Chromatography*， 2019-09-01 Update
• ISO 6472 Rubber compounding ingredients - Abbreviated terms*， 2017-06-01 Update

ASTM D4937-96(2012) history

• 2021 ASTM D4937-96(2021) Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography
• 1996 ASTM D4937-96(2017) Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography
• 1996 ASTM D4937-96(2012) Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography
• 1996 ASTM D4937-96(2006)e1 Standard Test Method forp-Phenylenediamine Antidegradants Purity by Gas Chromatography
• 1996 ASTM D4937-96(2001) Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography
• 1996 ASTM D4937-96e1 Standard Test Method for p-Phenylenediamine Antidegradants Purity by Gas Chromatography