BH GSO ISO 20654:2022
ISO 20654:2017
Bahraini Standard
Current Edition
·
Approved on
28 April 2022
Graphic technology — Measurement and calculation of spot colour tone value
BH GSO ISO 20654:2022 Files
English
5 Pages
Current Edition
Reference Language
BHD
20.31
BH GSO ISO 20654:2022 Scope
ISO 20654:2017 defines a metric for assessing intermediate tones of a spot ink. This method for the calculation of Spot Colour Tone Value (SCTV) produces approximately uniform visual spacing of tones between substrate and solid. It can be calculated from spectral reflectance or colorimetric measurements of the solid ink, substrate and one or more patches of intermediate tones to be measured.
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