T/JSCIA 3-2024
DZ/T 0064.67-2021
Methods for analysis of groundwater quality-Part 67:Determination of sulfide—N,N-dimethyl-1,4-phenylenediamine spectrophotometry
DZ/T 0064.67-1993
MT/T 371-1994
GB/T 6609.18-2004
Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N,N-dimethyl-P-phenylenediamine spectrophotometric method
MIL MIL-D-51412 Notice 3-Validation
Dye, Red, 2,5,2',5'-Tetramethyltriphenylmethane-4,4'-Diazo-Bis-Betahydroxynaphthoic Anilide
ASTM D4224-89
Test Method for Anionic Detergent by Para-Toluidine Hydrochloride (Withdrawn 1995)