What is ISO 18451-1 - Pigments, dyestuffs and extenders – Terminology about?
ISO 18451-1 is part one of a multi-series of international standards on Pigments, dyestuffs and extenders that covers its terminology and general terms.
ISO 18451-1 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.
Who is ISO 18451-1 - Pigments, dyestuffs and extenders – Terminology for?
ISO 18451-1 on Pigments, dyestuffs and extenders – Terminology is useful for:
- Pigments manufacturers
- Dyestuffs manufacturers
- Extenders manufacturers
Why should you use ISO 18451-1 - Pigments, dyestuffs and extenders – Terminology?
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally, dyes are often organic compounds whereas pigments are often inorganic compounds
An extender pigment is a naturally occurring chemical substance (usually having a white color) that is added to a paint or coating to improve its properties such as durability, cost, and resistance to corrosion or wear.
ISO 18451-1 can be used by the pigments, dyestuffs and extenders industries to understand the terminologies of technical terms. This can help increase your efficiency.
What’s changed since the last update?
BS EN ISO 18451-1:2019 supersedes BS EN ISO 18451-1:2017, which is withdrawn.
BS EN ISO 18451-1:2019 includes some technical changes with respect to BS EN ISO 18451-1:2017. These are:
- The definition for colour difference (3.21) has been aligned with ISO 18314-4
- The definition for extender (3.34) has been aligned with ISO 3262-1
- The definitions for full shade (3.41) and mass tone (3.69) have been interchanged to align them with the practical use and with definitions in other standards, e.g. ISO 787-25
- A note has been added to definitions 3.34 (extender) and 3.81 (nanoextender) concerning the use of the term “filler” as synonym for “extender” in some industries, e.g. rubber and paints
- The terms nanomaterial (3.82), engineered nanomaterial (3.82.1), manufactured nanomaterial (3.82.2) and incidental nanomaterial (3.82.3) have been added
