ASTM-D4890 2003

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D4890-98(2003) Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols

Published By	Publication Date	Number of Pages
ASTM	2003	4

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Categories: 83.040.30 - Auxiliary materials and additives for plastics, ASTM

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Description

ASTM D4890-98-Reapproved2003

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

ASTM D4890

Scope

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 D 1209. (See Note 1.)

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.

Note 1

Although Test Method A of these test methods and ISO 4630-1997 differ in some details, data obtained using either are technically equivalent. Although Test Method B of these test methods and ISO 6271-1981 differ in some details, data obtained using either are technically equivalent.

Keywords

APHA; color; Gardner; platinum-cobalt scale; polyols; polyurethane raw materials; Pt-Coscale

ICS Code

ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)

DOI: 10.1520/D4890-98R03

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use Sampling
2	Purity of Reagents Apparatus Reagents Gardner Color Reference Standards TABLE 1
3	Procedure Report Precision and Bias Apparatus Reagents Preparation of Color Standards Procedure Report Precision and Bias TABLE 2
4	Keywords

Additional information

Standard Title	D4890-98(2003) Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
Published Code	ASTM
Publication Date	2003
Pages Count	4
ICS Codes	83.040.30 - Auxiliary materials and additives for plastics