ASTM E430-97(2003) - 10.1.2003
 
1. Scope

1.1 These test methods cover the measurement of the reflection characteristics responsible for the glossy appearance of high-gloss surfaces. Two test methods, A and B, are provided for evaluating such surface characteristics at specular angles of 30 and 20, respectively. These test methods are not suitable for diffuse finish surfaces nor do they measure color, another appearance attribute.

1.2 As originally developed by Tingle and others (see Refs 1 and 2), the test methods were applied only to bright metals. Recently they have been applied to high-gloss automotive finishes and other nonmetallic surfaces.

 
2. Referenced Documents

E284-22

Standard Terminology of Appearance

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

E177-20

Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods

E308-22

Standard Practice for Computing the Colors of Objects by Using the CIE System

E179-17(2022)

Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials

E1347-06(2020)

Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry

D523-14(2018)

Standard Test Method for Specular Gloss

D2457-21

Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics

E171-94(1998)

Standard Specification for Standard Atmospheres for Conditioning and Testing Flexible Barrier Materials