What is BS EN 4195 – Determination of chromate leaching about?
BS EN 4195 discusses paints and varnishes. The aim of BS EN 4195 is to provide the best industrial practice to determine the resistance of paints and varnishes to chromate leaching. BS EN 4195 defines a test procedure for the determination of the leaching rate of hexavalent
chromium from the dry paint film of chromate containing primer for aerospace use.
The rate can be related to requirements either to prescribe the type of primer for intended use or for the purpose of batch quality consistency.
The procedure is applicable to products intended for use in aerospace applications.
Who is BS EN 4195 – Determination of chromate leaching for?
BS EN 4195 on the determination of chromate leaching is useful for:
- Paint manufacturers
- Aerospace equipment and component manufacturers
- Product design engineers
- Quality control, testing, and inspection authorities
- Regulatory bodies
- Certification bodies
Why should you use BS EN 4195 – Determination of chromate leaching?
Chromate treatments produce effective paint bonds through molecular adhesions with the film being bound to the metal, in turn offering the same type of adhesion to the organic coating. The film reduces creep corrosion, forming an effective barrier against corrosive attack through pores or scratches in the paint. When it comes to the manufacturing of paints and varnishes used in aerospace applications, reliability, consistent performance, and durability are crucial.
BS EN 4159 provides principle, apparatus, and procedure, to assess the efficacy of coating. This can help to assess the effectiveness of your chromate coating systems.