Standard Test Method for Transmittance and Color by Spectrophotometry Using Hemispherical Geometry (Includes all amendments and changes 12/27/2016).Přeložit název
NORMA vydána dne 1.11.2015
Označení normy: ASTM E1348-15e1
Datum vydání normy: 1.11.2015
Kód zboží: NS-651003
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
color, integrating sphere, spectrophotometer, translucent, transmittance, transparent,, ICS Number Code 17.180.20 (Colours and measurement of light)
|Significance and Use|
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 and Practice ):
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.
1.1 This 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.
1.2 This 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.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This 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 and health practices and determine the applicability of regulatory limitations prior to use.
|2. Referenced Documents|
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