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ASTM D7399-08

Historical Revision

Standard Test Method for Determination of the Amount of Polypropylene in Polypropylene/Low Density Polyethylene Mixtures Using Infrared Spectrophotometry

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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.


In recycling PP and LDPE, it is important to the end product properties as well as to the processing conditions to know what the purity of the mixture is. In many cases, it is vital to know that the recycled material is reasonably free of a contaminant.

SDO ASTM: ASTM International
Document Number D7399
Publication Date Sept. 1, 2008
Language en - English
Page Count 3
Revision Level 08
Supercedes
Committee D20.70
Publish Date Document Id Type View
April 1, 2018 D7399-18 Revision
Sept. 1, 2008 D7399-08 Revision