GB/T 23671-2023
2-Hydroxy-6-naphthoic acid
GB/T 23671-2023
GB/T 23671-2023
Dye, Red, 2,5,2',5'-Tetramethyltriphenylmethane-4,4'-Diazo-Bis-Betahydroxynaphthoic Anilide
GB/T 23671-2023
GB/T 23671-2023
GB/T 23671-2023
GB/T 23671-2023
2-Hydroxy-6-naphthalene carboxylic acid
GB/T 23671-2023
6-NItro-1,2-azoxynaphthalene -4-sulfonic acid
GB/T 23671-2023
DYE, P-NITROPHENYLAZO-BETA-NAPHTHYLAMINE (B-1) (NO S/S DOCUMENT) (SUPERSEDING MIL-D-10329)
GB/T 23671-2023
H-acid monosodium salt(1-Naphthylamine-8-hydroxy-3,6-disulfonic acid monosodium salt)
GB/T 23671-2023
Air quality--Determination of nitrobenzene(mononitro and dinitro-compound)--Reduction by zinc-N-(1-Naphthyl) ethylene diamine dihydrochloride spectrophotometric method
GB/T 23671-2023
GB/T 23671-2023
2-Hydroxy-3-naphthoic acid
GB/T 23671-2023
GB/T 23671-2023
GB/T 23671-2023
1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid monosodium salt(H-acid monosodium salt)
GB/T 23671-2023
GB/T 23671-2023
Workplace air—Determination of chloronitrobenzene—N-(1-naphthyl)-ethylenediamine dihydrochloride spectrophotometric method
GB/T 23671-2023
Workplace air—Determination of chlorodinitrobenzene—N-(1-naphthyl)-ethylenediamine dihydrochloride spectrophotometric method
GB/T 23671-2023
Workplace air—Determination of nitrobenzene—Naphthyl ethylenediamine dihydrochloride spectrophotometric method