What is ISO 787-25 - Test for pigments and extenders about?
ISO 787 discusses general methods of test for pigments and extenders. ISO 787-25 belongs to ISO 787 multi-series and discusses colorimetric method.
ISO 787-25 specifies a general test method for comparing the colour, in full-shade systems, of white, black, or coloured pigments with that of an agreed reference pigment, using a colorimetric procedure.
Who is ISO 787-25 - Test for pigments and extenders for?
ISO 787-25 on general methods of test for pigments and extenders by colorimetric method is useful for:
- Paint and Colour Manufacturers
- Quality control personnel
Why should you use ISO 787-25 - Test for pigments and extenders?
An extender pigment is a naturally occurring chemical substance (usually having a white color) that is added to paint or coating to improve its properties such as durability, cost, and resistance to corrosion or wear.
ISO 787-25 provides you with the preparation required for the colourimetric test, it gives the procedure for the test and the expression of the test result. ISO 787-25 gives you a colorimeteric test that helps in the consistency production of colour and reduces the cost of waste and production and thus increasing the efficiency of the production.
What’s changed since the last update?
BS EN ISO 787-25:2019 supersedes BS EN ISO 787-25:2006, which is withdrawn. BS EN ISO 787-25:2019 includes some technical changes with respect to BS EN ISO 787-25:2006. These include:
- Clause 3 has been revised and terms and definitions for full shade, mass tone and mass tone system have been added/revised
- The normative references have been updated
- The text has been editorially revised