Abstract Preview

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.

General information

  • Status :  Published
    Publication date : 2017-08
    Corrected version (en) : 2018-01
  • Edition : 1
    Number of pages : 5
  • :
    ISO/TC 130
    Graphic technology
  • 37.100.01
    Graphic technology in general

Buy this standard

Format Language
PDF + ePub
  • CHF38

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.