ISO/TC 256/WG 1 - Terminology

This document defines terms that are used in the field of pigments, dyestuffs and extenders. For some terms, reference is made to ISO 4618 in which also terms and definitions for colourants are given, relating to their use in coating materials.

This document applies to the industry producing colouring materials and the consumer who uses the products of this industry. In this document, the colouring materials are classified in accordance with colouristic and chemical aspects. Some dyestuffs for use in the ceramics and food industries are listed as examples.

ISO 18451-2:2015 applies for the industry producing colouring materials and the consumer who uses the products of this industry. In this part of ISO 18451, the colouring materials are classified in accordance with colouristic and chemical aspects. Some dyestuffs for use in the ceramics and food industries are listed as examples.

ISO 18451-1:2015 defines terms that are used in the field of pigments, dyestuffs and extenders. For some terms, reference is made to ISO 4618 in which also terms and definitions for colourants are given, relating to their use in coating materials. In addition to terms in English and French (two of the three official ISO languages), this part of ISO 18451 gives the equivalent terms in German; these are published under the responsibility of the member body for Germany (DIN). However, only the terms and definitions given in the official languages can be considered as ISO terms and definitions. NOTE Those terms that are defined elsewhere in this part of ISO 18451 are shown in italics.