ASTM D4890-13

Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols

ASTM International, 04/01/2013

Publisher: ASTM

File Format: PDF

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Description

Published:01/04/2013

Pages:5

File Size:1 file , 91 KB

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1.1 These test methods measure visually the color of clear polyester and polyether liquids. They apply only to materials whose colors have light-absorption characteristics similar to those of the standards. An alternative method is Test Method D1209 (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-Test Method A of this standard is equivalent to ISO 6271-1 . Test Method B of this standard is equivalent to ISO 4630-1 .

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