ASTM E430-11
Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry

Standard No.

ASTM E430-11

Release Date

2011

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E430-19

Latest

ASTM E430-23

Scope

The gloss of metallic finishes is important commercially on metals for automotive, architectural, and other uses where these metals undergo special finishing processes to produce the appearances desired. It is important for the end-products, which use such finished metals that parts placed together have the same glossy appearance.

It is also important that automotive finishes and other high-gloss nonmetallic surfaces possess the desired finished appearance. The present method identifies by measurements important aspects of finishes. Those having identical sets of numbers normally have the same gloss characteristics. It usually requires more than one measurement to identify properly the glossy appearance of any finish (see Refs 3 and 4).

1.1 These test methods cover the measurement of the reflection characteristics responsible for the glossy appearance of high-gloss surfaces. Three test methods, A, B and C, are provided for evaluating such surface characteristics at specular angles of 30°, 20° and 30°, 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.

1.3 The DOI of a glossy surface is generally independent of its curvature. The DOI measurement by this test method is limited to flat or flattenable surfaces.

ASTM E430-11 Referenced Document

• ASTM D2457 Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics
• ASTM D523 Standard Test Method for Specular Gloss
• ASTM E1347 Standard Test Method for Color and Color-Difference Measurement by Tristimulus (Filter) Colorimetry
• ASTM E171 Standard Specification for Standard Atmospheres for Conditioning and Testing Flexible Barrier Materials
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E179 Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
• ASTM E284 Standard Terminology of Appearance
• ASTM E308 Standard Practice for Computing the Colors of Objects by Using the CIE System
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM E430-11 history

• 2023 ASTM E430-23 Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
• 2019 ASTM E430-19 Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
• 2011 ASTM E430-11 Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
• 2005 ASTM E430-05 Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
• 2003 ASTM E430-97(2003) Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Goniophotometry
• 1997 ASTM E430-97 Standard Test Methods for Measurement of Gloss of High-Gloss Surfaces by Goniophotometry