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1.1 These test methods measure the amount of toluene-2,6-diisocyanate (2,6-TDI) isomer or toluene–2,4–diisocyanate (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 A—Applicable to TDI samples containing 5 to 95 % of 2,6-TDI isomer (5 to 95 % 2,4-TDI isomer).
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| ICS | 83.040.30 : Auxiliary materials and additives for plastics |
| Number of pages | 6 |
| Replace | ASTM D4660-12 + Redline |
| Set | ASTMVOL0802 |
| Year | 2018 |
| Document history | ASTM D4660-12 + Redline |
| Country | USA |
| Keyword | ASTM 4660;ASTM D4660;ASTM D4660;10.1520/D4660-18 |