GB/T 37042-2018
Hexamethylene diisocyanate
GB/T 13658-2015
Polymethylene polyphenylene isocyanate
GB/T 25254-2022
Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
GB/T 22591-2008
Water treatment chemicals - Bis-hexamethylene ariamine penta-methylene phosphonic acid
HG/T 5687-2020
1,3,3-Trimethy-2-methyleneindoline
HG/T 3777-2023
GB/T 27812-2011
Water treatment chemicals - Polyamino Polyether Methylene Phosphonate (PAPEMP)
DB43/T 2200-2021
HG/T 2841-2023
HG/T 4330-2012
Water treatment chemical-Sodium salt of diethylene triamine penta(methylene phosphonic acid)
SH 2604.02-2003
Water treatment chemicals-solidum(ethylenedinitrilo)-tetramethylenephosphate
HG/T 3777-2005
Water treatment chemicals-Diethlenetriamine penamethylene phosphonic acid
GB/T 38592-2020
Determination of 4,4'-methylene-bis(2-chloroaniline) in textile dyeing and finishing auxiliaries
HG/T 5687\uff5e5688-2020
GB/Z 38062-2019
Nanotechnologies—Determination of specific surface area of graphene materials—Methylene blue adsorption method
GB/T 12009.3-2009
Plastics - Polymethylene polyphenyl isocyanate - Part 3: Determination of viscosity
HG/T 4328-2012
Water theatment chemical-Sodium salt of aminotrimethylene phosphonic acid
HG/T 2840-2010
Water treatment chemicals-Amino trimethylene phosphonic acid (solid)
HG/T 6010-2022
GB/T 12496.10-1999
Test methods of wooden activated carbon--Determination of methylene blue adsorption