ASTM D4660-00
Historical Standard: ASTM D4660-00 Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
SUPERSEDED (see Active link, below)
ASTM D4660
1. Scope
1.1 These test methods measure the amount of toluene-2,6-diisocyanate (TDI) in mixtures of the 2,4- and 2,6-isomers. Two test methods are required to give accurate results over a broad range of isomer concentrations.
1.1.1 Test Method A -Applicable to TDI samples containing 5 to 95% 2,6-isomer.
1.1.2 Test Method B -Applicable to TDI samples containing 0 to 5% 2,6-isomer.
Note 1--There are no equivalent ISO standards.
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. For specific warning and precautionary statements see Note 3.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D883 Terminology Relating to Plastics
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
ISO Standard
ISO15064 PlasticsAromatic Isocyanates for Use in the Production of PolyurethanesDetermination of the Isomer Ratio in ToluenediisocyanateKeywords
FTIR; infrared; IR; isomer; polyurethane raw material; TDI; toluene diisocyanate ;
ICS Code
ICS Number Code 83.040.30 (Auxiliary materials and additives for plast)
DOI: 10.1520/D4660-00
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