Norm

ASTM D7252-17

Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates

48,45

Over deze norm

Status Definitief
Aantal pagina's 5
Commissie D20.22
Gepubliceerd op 15-04-2017
Taal Engels

1.1 This test method determines the percent by weight of monomeric isomers and total monomer in crude or modified isocyanates. The test method is applicable to methylene di(phenylisocyanate) (MDI) and polymeric (methylene phenylisocyanate) (PMDI). (See Note 1.)

1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 known ISO equivalent to this standard.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Details

ICS-code 19.020
83.040.01
83.100
Nederlandse titel Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
Engelse titel Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates

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