UNE 84694:2006 Cosmetic raw materials. Sunscreens. Disodium salt of 2,2'-bis-(1,4-phenylene)1H-benzimidazole-4,6-disulphonic acid. Determination of purity by liquid chromatography.
2018UNE 84694:2018 Cosmetic raw materials. Sunscreens. Disodium salt of 2-2'-(1,4-phenylene)-bis-1H-benzimidazole-4,6-disulphonic acid. Determination of purity by liquid chromatography
2006UNE 84694:2006 Cosmetic raw materials. Sunscreens. Disodium salt of 2,2'-bis-(1,4-phenylene)1H-benzimidazole-4,6-disulphonic acid. Determination of purity by liquid chromatography.