Standard Test Method for Transmittance and Color by Spectrophotometry Using Hemispherical Geometry

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-14-2022

Publisher

American Society for Testing and Materials

1.1This test method describes the instrumental measurement of the transmission properties and color of object-color specimens by the use of a spectrophotometer or spectrocolorimeter with a hemispherical optical measuring system, such as an integrating sphere.

1.2This test method is generally suitable for all fully transparent specimens without regard for the specimen position relative to the transmission port of the instrument. Translucent specimens, however, must be placed flush against the transmission port of the sphere.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4This 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.

1.5This 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.

Committee	E 12
DocumentType	Test Method
Pages	3
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM E 1348 : 2015 : EDT 1

ASTM E 805 : 2022	Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials
ASTM E 179 : 2017 : R2022	Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
ASTM C 1649 : 2014 : R2021	Standard Practice for Instrumental Transmittance Measurement of Color for Flat Glass, Coated and Uncoated
ASTM E 313 : 2020	Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
ASTM E 1247 : 2012 : R2017	Standard Practice for Detecting Fluorescence in Object-Color Specimens by Spectrophotometry
ASTM E 3022 : 2018	Standard Practice for Measurement of Emission Characteristics and Requirements for LED UV-A Lamps Used in Fluorescent Penetrant and Magnetic Particle Testing
ASTM D 1746 : 2015	Standard Test Method for Transparency of Plastic Sheeting
ASTM D 4303 : 2010 : R2016	Standard Test Methods for Lightfastness of Colorants Used in Artists' Materials

ASTM D 2244 : 2023	Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
ASTM E 284 : 2022	Standard Terminology of Appearance
ASTM E 1164 : 2012 : R2023 : EDT 1	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
ASTM D 2244 : 2022	Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
ASTM E 1164 : 2023	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
ASTM E 1164 : 2012 : R2017 : EDT 1	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
ASTM E 284 : 2017	Standard Terminology of Appearance