British Standards Institution

Source:: ISO
Committee:: PAI/43 - Graphic technology
Categories:: Information management | Standardization. General rules | ICT | Image technology | Graphic technology | Graphic technology. General | Graphic technology. Materials

Scope

This document defines a process independent measurement method for the evaluation of graininess of printed products. It provides requirements for the test form and measurement devices to be used as well as the formulas to compute the colour graininess score (SCG).

Purpose

The available graininess specification only cover graininess variation based on lightness differences. There is a lack of an easy to use, practical agreed upon method the evaluate the colour graininess of a printed matter. This works nicely extends the intended framework of the ISO 18621 family. The potential users are both manufacturers and print service providers since the main prerequisite is a calibrated and profiled scanner.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

14/06/2021

Proposal end date:

23/08/2021

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/TC 130 N 4547, ISO/NP TS 18621-22 Graphic technology -- Image quality evaluation methods for printed matter -- Part 22: Evaluation of colour graininess

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