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ASTM International - ASTM D6645-01

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

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Organization: ASTM International
Publication Date: 10 March 2001
Status: inactive
Page Count: 4
ICS Code (Non-destructive testing): 19.100
ICS Code (Thermoplastic materials): 83.080.20
significance And Use:

This method determines the number of branches (that is, comonomer content) in copolymers of ethylene with 1-butene, 1-hexene or 1-octene. This information can be correlated with physical... View More

scope:

1.1 This 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.

1.2 The values stated in SI units, based on IEEE/ASTM S1-10, are to be regarded as the standard.

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.

Note 1--There is no similar or equivalent ISO standard.

Document History

October 1, 2018
Standard Test Method for Methyl (Comonomer) Content in Polyethylene by Infrared Spectrophotometry
1.1 This 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...
January 1, 2010
Standard Test Method for Methyl (Comonomer) Content in Polyethylene by Infrared Spectrophotometry
1.1 This 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...
ASTM D6645-01
March 10, 2001
Standard Test Method for Methyl (Comonomer) Content in Polyethylene by Infrared Spectrophotometry
1.1 This 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...
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