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
HG/T 5687-2020
1,3,3-Trimethy-2-methyleneindoline
HG/T 3777-2023
GB/T 22591-2008
Water treatment chemicals - Bis-hexamethylene ariamine penta-methylene phosphonic acid
DB43/T 2200-2021
GB/T 27812-2011
Water treatment chemicals - Polyamino Polyether Methylene Phosphonate (PAPEMP)
HG/T 2841-2023
GB/T 1400-2014
Chemical reagent―Hexamethylene tetramine
SH 2604.02-2003
Water treatment chemicals-solidum(ethylenedinitrilo)-tetramethylenephosphate
HG/T 5687\uff5e5688-2020
GB/T 9015-1998
Hexamethylene tetramine for industrial use
HG/T 4330-2012
Water treatment chemical-Sodium salt of diethylene triamine penta(methylene phosphonic acid)
GB/T 38401-2019(\u82f1\u6587\u7248)
皮革和毛皮 化学试验 二甲基甲酰胺含量的测定
GB/T 12496.10-1999
Test methods of wooden activated carbon--Determination of methylene blue adsorption
HG/T 3777-2005
Water treatment chemicals-Diethlenetriamine penamethylene phosphonic acid
HG/T 4328-2012
Water theatment chemical-Sodium salt of aminotrimethylene phosphonic acid
HG/T 5400\uff5e5401-2018
HG/T 2840-2010
Water treatment chemicals-Amino trimethylene phosphonic acid (solid)