What is BS EN 12878 – Specifications and methods of test for pigments for the colouring of building materials about?
BS EN 12878 specifies the requirements and the methods of test for pigments for use in the colouring of building materials based on cement and cement/lime combinations.
Pigments for this purpose may be single pigments, blends of pigments, blends of pigments and extenders in powder or granular form, or aqueous preparations. BS EN 12878 helps in manufacturing pigments with the specific requirements of the construction industry.
Who is BS EN 12878 - Specifications and methods of test for pigments for the colouring of building materials for?
BS EN 12878 on pigments is useful for:
- Pigments manufacturers
- Civil engineers
- Testing laboratories
- Quality control
Why should you use BS EN 12878 - Specifications and methods of test for pigments for the colouring of building materials?
Pigments are generally in the form of fine particles, which is practically insoluble in the application medium and whose sole purpose is to colour cement- and/or lime-based building materials. BS EN 12878 provides requirements and test methods that help to determine the characteristics of the pigments based on construction industry requirements for pigments. This will ensure that the pigments are durable, corrosion resistant, heat stable, weather resistant, lightfast, safe, environmentally friendly, and cost effective.
What is changed since the last update?
BS EN 12878:2014 supersedes BS EN 12878:2005 which is withdrawn.
BS EN 12878:2014 includes some technical changes with respect to BS EN 12878:2005.
These include:
- Requirements for Category B regarding water soluble substances in 4.2.3 modified to accommodate non powder preparations
- Test method for total chlorine content changed
- Permission to use alternative test methods with proven correlation to standard methods added
- Light source amended
- Annex ZA has been changed to consider the new Construction Production Regulation (CPR)
