GB/T 1648-2013
H-acid monosodium salt(1-Naphthylamine-8-hydroxy-3,6-disulfonic acid monosodium salt)
DB37/T 2391-2013
GB/T 1648-2007
1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid monosodium salt(H-acid monosodium salt)
HG/T 3463-2000
Chemical reagent Arsenazo Ⅲ
GB/T 1648-2001
H-acid monosodium salt(1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid monosodium salt)
T/QAS 086-2023
T/CAIA SH002-2014
MIL MIL-D-51412 Notice 3-Validation
Dye, Red, 2,5,2',5'-Tetramethyltriphenylmethane-4,4'-Diazo-Bis-Betahydroxynaphthoic Anilide
HG/T 4416-2012
HG/T 5916-2021
UNE 34210:1981
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).
GB/T 28794.5-2012
GB/T 27894.5-2012
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen,carbon dioxideand C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns
GB/T 4921-1985
Waste gasfrom manufacturing process--Determination of chemical oxygendemand and nitrogenoxide--Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
GB/T 8969-1988
Air quality--Determination of nitrogen oxides in ambient air--Griess-saltzman method
DB37/T 3035-2017
HJ 479-2009
GB/T 23373-2009
Determination of butylated hydroxyl anisole(BHA)、dibutylated hydroxyl toluene(BHT)and tertiary butyl hydroquinone(TBHQ) in foods
GB/T 27894.4-2012
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen,carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
GB/T 16032-1995
Workplace air—Determination of nitrogen oxides—Naphthyl ethylenediamine dihydrochloride spectrophotometric method