NB/SH/T 0855-2021
Synthetic alkylbenzene calcium sulfonate detergents
NB/SH/T 0855-2013
Synthetic alkylbenzene calcium sulfonate detergents
HG/T 3463-2000
Chemical reagent Arsenazo Ⅲ
UNE 34210:1981
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).