ASTM D 6645 : 2018
Current
The latest, up-to-date edition.
Standard Test Method for Methyl (Comonomer) Content in Polyethylene by Infrared Spectrophotometry
Hardcopy , PDF
English
01-10-2018
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This test method covers the determination of methyl groups (that is, comonomer content) in polyethylenes by infrared spectrophotometry.
| Committee |
D 20
|
| DocumentType |
Test Method
|
| Pages |
4
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
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.
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| 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 |
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