Standard Swedish standard · SS-EN ISO 11664-2:2011

Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007)

Status: Withdrawn

· Replaced by: SS-EN ISO/CIE 11664-2:2022
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Standard Swedish standard · SS-EN ISO 11664-2:2011

Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007)
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Scope
This International Standard specifies two illuminants for use in colorimetry. The illuminants, which are defined in clauses 4 and 5 of this International Standard, are as follows: a) CIE standard illuminant AThis is intended to represent typical, domestic, tungsten-filament lighting. Its relative spectral power distribution is that of a Planckian radiator at a temperature of approximately 2 856 K. CIE standard illuminant A should be used in all applications of colorimetry involving the use of incandescent lighting, unless there are specific reasons for using a different illuminant. b) CIE standard illuminant D65 This is intended to represent average daylight and has a correlated colour temperature of approximately 6 500 K. CIE standard illuminant D65 should be used in all colorimetric calculations requiring representative daylight, unless there are specific reasons for using a different illuminant. Variations in the relative spectral power distribution of daylight are known to occur, particularly in the ultraviolet spectral region, as a function of season, time of day, and geographic location. However, CIE standard illuminant D65 should be used pending the availability of additional information on these variations. Values for the relative spectral power distribution of CIE standard illuminants A and D65 are given in Table 1 of this International Standard. Values are given at 1 nm intervals from 300 nm to 830 nm.

Subjects

Colours and measurement of light (17.180.20)


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Standard Swedish standard · SS-EN ISO 11664-2:2011

Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007)
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Price: 1 013 SEK
standard ikon pdf

PDF

Price: 1 013 SEK
standard ikon

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80418

Edition: 1

Approved: 5/16/2011

No of pages: 28

Replaced by: SS-EN ISO/CIE 11664-2:2022