ASTM-D4660 Historical Revision Information
Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate

ASTM-D4660 - 1987 EDITION - SUPERSEDED
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Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
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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.

Keywords

FTIR; infrared; IR; isomer; polyurethane raw material; TDI; toluene diisocyanate; ICS Number Code 83.040.30 (Auxiliary materials and additives for plast)

To find similar documents by ASTM Volume:

08.02 (Plastics (II): D3222 - D5083)

To find similar documents by classification:

83.040.30 (Auxiliary materials and additives for plastics Including fillers, extenders, hardeners, pigments, plasticizers, etc.)

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Document Number

ASTM-D4660-87

Revision Level

1987 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Feb. 27, 1987

Document Type

Test Method

Page Count

5 pages

Committee Number

D20.22