What is ISO 787‑13 - General methods of test for pigments and extenders about?
ISO 787‑13 is part 13 of a multi-series of international standards on general methods of test for pigments and extenders which covers determination of water-soluble sulfates, chlorides and nitrates.
ISO 787‑13 specifies a general method of test for determining the water-soluble sulphates, chlorides and nitrates of pigments.
Who is ISO 787‑13 - General methods of test for pigments and extenders for?
ISO 787‑13 on general methods of test for pigments and extenders is useful for:
- Pigments manufacturers
- Extenders manufacturers
Why should you use ISO 787‑13 - General methods of test for pigments and extenders?
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.
Extender pigments are added in order to reduce the cost of a paint formulation. They are also used to modify the flow (viscosity), sedimentation stability and film strength. Most extenders appear white and possess a refractive index similar to commonly used binders.
With the help of ISO 787‑13, you can determine the water-soluble sulphates, chlorides and nitrates of pigments as it contains its test methods. With this additional information you can improve the quality of your production of pigments and extenders.
What’s changed since the last update?
BS EN ISO 787‑13:2019 supersedes BS EN ISO 787‑13:2002, which is withdrawn.
BS EN ISO 787‑13:2019 includes some technical changes with respect to BS EN ISO 787‑13:2002. These are:
- Clause 3 on “Terms and definitions”, with a general reference to ISO 184511, has been added
- CAS numbers have been added to the reagents
- The bibliography has been added
- The text has been editorially revised
