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Standard Guide for Selection of Geometric Conditions for Measurement of Reflection and Transmission Properties of Materials
Přeložit název
NORMA vydána dne 1.10.2022
Označení normy: ASTM E179-17(2022)
Datum vydání normy: 1.10.2022
Kód zboží: NS-1088748
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
geometric conditions, reflection, transmission,, ICS Number Code 17.180.20 (Colours and measurement of light)
1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1.1?This guide is intended for use in selecting terminology, measurement scales, and instrumentation for describing or evaluating such appearance characteristics as glossiness, opacity, lightness, transparency, and haziness in terms of reflected or transmitted light. This guide does not consider the spectral variations responsible for color, but the geometric variables described herein can importantly affect instrumentally measured values of color. This guide is general in scope rather than specific as to instrument or material. 1.2?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. |
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2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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