This standard BS EN 934-1:2008 Admixtures for concrete, mortar and grout is classified in these ICS categories:
91.100.30 Concrete and concrete products
This European Standard specifies the common requirements for all admixtures covered by EN 934-2, EN 934-3, EN 934-4 and EN 934-5, which contain the specific requirements for each type of admixture. The requirements for corrosion behaviour are not applicable to chloride based admixtures.