ASTM D4890-98

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

STANDARD published on 10.7.1998

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The information about the standard:

Designation standards: ASTM D4890-98
Note: WITHDRAWN
Publication date standards: 10.7.1998
SKU: NS-29043
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D4890-98 :

Keywords:

Color-plast, Light-absorption, Liquids, Polyester plast, Polyether polyols, Polyols, Urethanes-polyurethane raw materials (polyols), Gardner and alpha color of polyols, test, ICS Number Code 83.040.30 (Auxiliary materials and additives for plast), 83.080.20 (Thermoplastic materials)

Additional information

1. 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 D1209. (See Note 1.)

1.2 This standard does not purport to address all of the safety problems, 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-There is no equivalent ISO standard.

2. Referenced Documents

ISO?4630-1	Clear Liquids--Estimation of Colour by the Gardner Colour Scale--Part 1: Visual Method
ISO?4630-2	Clear Liquids--Estimation of Colour by the Gardner Colour Scale--Part 2: Spectroscopic Method
E1164-23	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
D6166-12(2022)	Standard Test Method for Color of Pine Chemicals and Related Products (Instrumental Determination of Gardner Color)
D5386-24	Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
E308-22	Standard Practice for Computing the Colors of Objects by Using the CIE System
ISO?6271-1	Clear Liquids--Estimation of Color by the Platinum-Cobalt Scale--Part 1: Visual Method
E177-26a	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).
D1209-25	Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
D1193-24	Standard Specification for Reagent Water
D883-26b	Standard Terminology Relating to Plastics (Includes all amendments and changes 8/24/2026).
ISO?6271-2	Clear Liquids--Estimation of Color by the Platinum-Cobalt Scale--Part 2: Spectroscopic Method

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