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This test method covers the determination of free toluene diisocyanates in urethane prepolymers and unpigmented coating solutions.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in December 2004 in accordance with section 10.6.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by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 covers the determination of free toluene diisocyanates in urethane prepolymers and unpigmented coating solutions.
Note 1-This test method may also be useful for the determination of free isocyanate monomers of other types upon taking precautions to confirm suitability.
1.2 There is no reason to believe this test method would not work for pigmented coatings.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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. For a specific hazard statement, see Section 8.
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ASTM D3432-89(1996)e1, Standard Test Method for Unreacted Toluene Diisocyanates in Urethane Prepolymers and Coating Solutions by Gas Chromatography (Withdrawn 2004), ASTM International, West Conshohocken, PA, 1996, www.astm.orgBack to Top