ASTM D4877-19 PDF

Scope: 1.1 This test method measures the color of clear liquids. It is applicable only to materials whose color-producing bodies have light-absorption characteristics similar to those of the platinum cobalt color standards used.2 (See Test Method D1209 and Note 1.) Suitable isocyanates include toluene diisocyanate, and pure or modified monomeric methylene di(phenylisocyanate). 1.2 The values stated in SI units are to be regarded as 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—This standard and ISO 6271-1 address the same subject matter, but differ in technical content. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D4877-19 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1209 Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)*， 2024-04-21 Update
ASTM D4890 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
ASTM D5386 Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
ASTM E2935 Standard Practice for Evaluating Equivalence of Two Testing Processes*， 2021-06-01 Update
ASTM E456 Standard Terminology for Relating to Quality and Statistics
ISO 6271-1 Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 1: Visual method

2019 ASTM D4877-19 Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
2014 ASTM D4877-14 Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
2010 ASTM D4877-10 Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
2004 ASTM D4877-04 Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
1998 ASTM D4877-98 Standard Test Method for Polyurethane Raw Materials Determination of APHA Color in Isocyanates