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

Importancia y uso:

5.1 The most direct and accessible methods for obtaining the color coordinates of object colors are by instrumental measurement using spectrophotometers or colorimeters with either hemispherical or bidirectional optical measuring systems. This test method provides procedures for such measurement by transmittance spectrophotometry using a hemispherical optical measuring system.

5.2 This test method is especially suitable for measurement of the following types of specimens (see also Guide E179 and Practice E805):

5.2.1 Fully transparent specimens (free from turbidity, haze, or translucency), and

5.2.2 Translucent or hazy specimens, provided that the specimen can be placed flush against the transmission port of the integrating sphere.

5.3 This test method is not recommended for measurement of retroreflective transparent or translucent specimens, or samples that are fluorescent.

Subcomité:

E12.02

Referida por:

E0179-17R22, E1247-12R23, E3022-18, D4303-10R22, E0313-20, D4587-23, E3022-18, E0805-22, D1746-23, C1649-14R21, E0313-20

Volúmen:

06.01

Número ICS:

17.180.20 (Colours and measurement of light)

Palabras clave:

color; integrating sphere; spectrophotometer; translucent; transmittance; transparent;