ASTM E3040-22 PDF

Scope: 1.1 Test Method D2616 describes a painted gray scale and the procedure to be used in the visual evaluation of color differences on non-self-luminous materials by comparison to this scale. This practice provides an alternative method of obtaining a similarly valued result by an instrumental method. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard, except that the test results of this test method are converted by the calculations to an arbitrary visual scale defined by Test Method D2616, whose units are called GSC (Gray Scale for Change in Color). 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. 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 E3040-22 Referenced Document

ASTM D2244 Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates
ASTM D2616 Standard Test Method for Evaluation of Visual Color Difference With a Gray Scale
ASTM E1164 Standard Practice for Obtaining Spectrophotometric Data for Object-Color Evaluation
ASTM E284 Standard Terminology of Appearance
ASTM E308 Standard Practice for Computing the Colors of Objects by Using the CIE System
ISO 105-A05 Textiles - Tests for colour fastness - Part A05: Instrumental assessment of change in colour for determination of grey scale rating; Technical Corrigendum 2
JIS L 0809 Instrumental determination of colour fastness -- Change in colour and staining

2022 ASTM E3040-22 Standard Practice for Evaluation of Instrumental Color Difference with a Gray Scale
2018 ASTM E3040-18 Standard Practice for Evaluation of Instrumental Color Difference with a Gray Scale
2016 ASTM E3040-16 Standard Practice for Evaluation of Instrumental Color Difference with a Gray Scale
2015 ASTM E3040-15 Standard Test Method for Evaluation of Instrumental Color Difference with a Gray Scale