Norm

ASTM D4660-12

Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate

54,27

Over deze norm

Status Definitief
Aantal pagina's 6
Commissie D20.22
Gepubliceerd op 01-05-2012
Taal Engels

1.1 These test methods measure the amount of toluene-2,6-diisocyanate (2,6-TDI) isomer or toluene2,4diisocyanate (2,4-TDI) isomer in mixtures of the 2,4- and 2,6-isomers of toluenediisocyanate (TDI). Two different test methods are provided to give accurate results over the broad range of isomer concentrations possible.

1.1.1 Test Method AApplicable to TDI samples containing 5 to 95 % of 2,6-TDI isomer (5 to 95 % 2,4-TDI isomer).

1.1.2 Test Method BApplicable to TDI samples containing 0 to 5 % of 2,6-TDI isomer (95 to 100 % 2,4-TDI isomer).

Note 1—These test methods are equivalent to ISO 15064.

1.2 The values stated in SI units are to be regarded as 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.

Details

ICS-code 83.040.30
Nederlandse titel Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
Engelse titel Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate

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