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ASTM International - ASTM D8036-16

Standard Test Method for Polyurethane Raw Materials: Determination of Dimer Ratio in Pure MDI

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Organization: ASTM International
Publication Date: 1 May 2016
Status: active
Page Count: 3
ICS Code (Latex and raw rubber): 83.040.10
significance And Use:

5.1 This test method can be used for research or for quality control to determine the dimer ratio of Pure MDI.

5.2 Uretidinedione begins forming in Pure MDI with the rate of formation... View More

scope:

1.1 This test method determines the ratio of the infrared absorbance of uretidinedione (dimer) in methylene-4,4'- di(phenylisocyanate) to an infrared absorbance at a reference wavelength within the same material. It is applicable to monomeric methylene-di(phenylisocyanate), or "Pure MDI," containing 95 % or greater methylene-4,4'-di(phenylisocyanate).

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

Document History

ASTM D8036-16
May 1, 2016
Standard Test Method for Polyurethane Raw Materials: Determination of Dimer Ratio in Pure MDI
1.1 This test method determines the ratio of the infrared absorbance of uretidinedione (dimer) in methylene-4,4’- di(phenylisocyanate) to an infrared absorbance at a reference wavelength within the...
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