Name: ASTM D 6645 : 2018
Brand: ASTM
Price: 45.92 GBP

Standard Test Method for Methyl (Comonomer) Content in Polyethylene by Infrared Spectrophotometry

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-10-2018

Publisher

American Society for Testing and Materials

This test method covers the determination of methyl groups (that is, comonomer content) in polyethylenes by infrared spectrophotometry.

1.1This test method covers the determination of methyl groups (that is, comonomer content) in polyethylenes by infrared spectrophotometry. The test method is applicable to copolymers of ethylene with 1-butene, 1-hexene, or 1-octene having densities above 900 kg/m³. High-pressure low-density polyethylenes (LDPE) and terpolymers are excluded.

1.2The values stated in SI units, based on IEEE/ASTM SI-10, are to be regarded as the standard.

1.3This 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.

Note 1:There is no known ISO equivalent to this standard.

1.4This 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 20
DocumentType	Test Method
Pages	4
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 6645 : 2001 : R2010 ASTM D 6645 : 2001

ASTM E 177 : 1990 : REV A : R1996	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E 1421 : 1999 : R2021	Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
ASTM D 2238 : 2022	Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm<sup>−1</sup>
ASTM E 1421 : 1999 : R2004	Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
ASTM E 131 : 2010 : R2023	Standard Terminology Relating to Molecular Spectroscopy
ASTM D 5576 : 2000 : R2006	Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers by Infrared Spectrophotometry (FT-IR)
ASTM D 5576 : 2000 : R2013	Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers by Infrared Spectrophotometry (FT-IR)
ASTM E 168 : 2016 : R2023	Standard Practices for General Techniques of Infrared Quantitative Analysis
ASTM E 932 : 1989 : R2013	Standard Practice for Describing and Measuring Performance of Dispersive Infrared Spectrometers
ASTM D 2238 : 1992 : R2004	Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm
ASTM D 3124 : 1998	Standard Test Method for Vinylidene Unsaturation in Polyethylene by Infrared Spectrophotometry
ASTM E 1421 : 1999 : R2009	Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
ASTM D 1505 : 2003	Standard Test Method for Density of Plastics by the Density-Gradient Technique
ASTM E 1421 : 1999 : R2015 : EDT 1	Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
ASTM E 932 : 1989 : R2021	Standard Practice for Describing and Measuring Performance of Dispersive Infrared Spectrometers
ASTM E 1421 : 1999	Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers Level Zero and Level One Tests
ASTM D 5576:2000	Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers by Infrared Spectroscopy (FT-IR)
ASTM D 2238 : 1992 : R2012 : EDT 1	Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm<sup>−1</sup> (Withdrawn 2021)
ASTM E 131 : 2010 : R2015	Standard Terminology Relating to Molecular Spectroscopy
ASTM D 1505 : 1968 : R1979	Standard Test Method for Density Of Plastics By The Density-Gradient Technique
ASTM D 5576 : 2000 : R2021 : EDT 1	Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers by Infrared Spectrophotometry (FT-IR)
ASTM D 1505 : 2010	Standard Test Method for Density of Plastics by the Density-Gradient Technique
ASTM D 2238 : 1992 : R1999	Standard Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm
ASTM D 1505 : 2018	Standard Test Method for Density of Plastics by the Density-Gradient Technique
ASTM D 3124 : 1998 : R2011	Standard Test Method for Vinylidene Unsaturation in Polyethylene by Infrared Spectrophotometry
ASTM D 3124 : 1998 : R2003	Standard Test Method for Vinylidene Unsaturation in Polyethylene by Infrared Spectrophotometry
ASTM D 1505 : 1998 : EDT 1	Standard Test Method for Density of Plastics by the Density-Gradient Technique
ASTM E 168 : 2016	Standard Practices for General Techniques of Infrared Quantitative Analysis