GB/T 21896-2019
2-Naphthylamine-1,5-disulfonic acid (sulphonic Tobias acid )
GB/T 24415-2009
2-Naphthylamine-4,8-disulfonic acid (Amino C acid )
GB/T 37042-2018
Hexamethylene diisocyanate
DB37/T 2390-2013
GB/T 25254-2022
Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
GB/T 1648-2013
H-acid monosodium salt(1-Naphthylamine-8-hydroxy-3,6-disulfonic acid monosodium salt)
HG/T 3777-2023
SH 2604.02-2003
Water treatment chemicals-solidum(ethylenedinitrilo)-tetramethylenephosphate
HG/T 4330-2012
Water treatment chemical-Sodium salt of diethylene triamine penta(methylene phosphonic acid)
GB/T 21896-2008
2-Naphthylamine-1,5-disulfonic acid (Sulphonic Tobias acid )
HG/T 3777-2005
Water treatment chemicals-Diethlenetriamine penamethylene phosphonic acid
DB43/T 2200-2021
GB/T 39882-2021
Examination methods for methylene dioxymetham phetamine in suspected drugs—Gas chromatography and gas chromatography-mass spectrometry
HG/T 3538-2011
HG/T 5868-2021
Technical specification for green-design product assessment-Polytetrarmethylene ether glycol
HG/T 4329-2012
Water treatment chemical-Ethylene diamine tetra (methylene phosphonic) penta sodium salt
GB/T 25254-2010
Poly-(tetra methylene ether glycol) (PTMEG) for industrial
GB/T 2441.9-2010
Determination of urea - Part 9: Methylenediurea content - Spectrophotometric method
YB/T 917-2017
Carbon materials—Determination of vanadium content—3,3-dimethyl naphthalene amine colorimetric method
HG/T 5687\uff5e5688-2020