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This test method uses an infrared approach for determining the presence of polypropylene (PP) physically mixed in with low density polyethylene—usually for recycling purposes.
Formerly under the jurisdiction of Committee D20 on Plastics, this standard was withdrawn in February 2017 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
1.1 This test method uses an infrared approach for determining the presence of polypropylene (PP) physically mixed in with low density polyethylene – usually for recycling purposes.
Note 1—Quantitative determinations require several standard mixtures in the concentration range of interest and well defined baseline anchoring points.
1.2 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 2—There is no known ISO equivalent to this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D883 Terminology Relating to Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2238 Test Methods for Absorbance of Polyethylene Due to Methyl Groups at 1378 cm-1
D5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics
E131 Terminology Relating to Molecular Spectroscopy
E168 Practices for General Techniques of Infrared Quantitative Analysis
E932 Practice for Describing and Measuring Performance of Dispersive Infrared Spectrometers
E1421 Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
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ASTM D7399-08, Standard Test Method for Determination of the Amount of Polypropylene (PP) in Polypropylene/LDPE Mixtures Using Infrared Spectrophotometer (FTIR) (Withdrawn 2017), ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top