BS EN 15458:2022

What is BS EN 15458 - Algae resistance test for film preservatives about? 

BS EN 15458 specifies a laboratory test method for determining the biocidal or biostatic efficacy of single active substances or combinations thereof used in film preservatives of coatings against algal growth.

BS EN 15458 covers only active substances for film preservation, not the substrate itself, e.g. wood, which is dealt with in another standard. BS EN 15458 is applicable for active substances used for wood protection and masonry coatings.

Note 1: BS EN 15458 does not apply to coatings unsusceptible to algal growth.

Note 2: BS EN 15458 does not apply to marine coatings.

Note 3: Safety, health and environmental aspects are not in the scope of BS EN 15458.

Note 4: Determination of the performance of film preservatives in coatings by applying ageing procedures is not within the scope of BS EN 15458.

Who is BS EN 15458 - Algae resistance test for film preservatives for? 

BS EN BS EN 15458 on the algae resistance test for film preservatives is useful for: 

• The paints and varnishes industry
• The construction/building industry
• The wood processing industry
• The chemical industry
• Professionals dealing with masonry/wood coating
• Manufacturers of coatings for wood and masonry
• Product design engineers/innovation teams
• Quality control/testing personnel
• Research laboratories

 Why should you use BS EN 15458 - Algae resistance test for film preservatives?

The paint and coatings industry around the world supports the safe use of preservatives. Preservatives are antimicrobial additives or biocides that are necessary for controlling the growth of unwanted micro-organisms in waterborne paints and varnishes.

BS EN 15458 discusses terms and definitions that depict a user-friendly idea of film preservatives. BS EN 15458 discusses microorganisms that affect the quality of paint. BS EN 15458 also provides users with a test procedure which contributes to the performance characteristics of paints and varnishes ensuring their reliability. The guidelines in BS EN 15458 help you determine the algae resistance test for film preservatives that enables you to provide a superior quality product to your customers.

What’s changed since the last update?

BS EN 15458:2022 supersedes EN 15458:2014. BS EN 15458:2022 includes some technical changes with respect to EN 15458:2014. These include: 

• New terms and definitions have been added
• The use of terms and definitions throughout the document was corrected
• BS EN 15458 has been editorially revised and the normative references have been updated