【TBT】KS 2770 part 4: Admixtures for concrete, mortar and grout. Admixtures for grout for prestressing tendons. Definitions, requirements, conformity, marking and labelling
【TBT】KS 2769-6:2018 Admixtures for Concrete, Mortar and Grout — Test Methods Admixtures for Concrete, Mortar and Grout - Test Methods - Part 6: Infrared Analysis.