GB/T 2441.9-2010
Determination of urea - Part 9: Methylenediurea content - Spectrophotometric method
GB/T 2441.9-2001
Determination of Urea—Determination of methylenediurea content—Spectrophotometric method
ISO 25705:2016
Fertilizers — Determination of urea condensates using high-performance liquid chromatography (HPLC) — Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B)
GB/T 37042-2018
Hexamethylene diisocyanate
GB/T 25254-2022
Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
DIN EN ISO 25705-DRAFT
Draft Document - Fertilizers - Determination of urea condensates using high-performance liquid chromatography (HPLC) - Isobutylidenediurea and crotonylidenediurea (method A) and methylene-urea oligomers (method B) (ISO 25705:2016); German and English version prEN ISO 25705:2019
HG/T 3777-2023
EN 15705:2010
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)
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
BS 09/30205567 DC
BS EN 15705. Fertilizers. Determination of urea condensates using high performance liquid chromatography (HPLC). Isobutylidenediurea and crotonylidenediurea (method A) and methylene-urea oligomers (method B)
DOD DOD-M-64040A Notice 2-Reactivation
Methyl Diphenylurea
HG/T 3538-2011
DOD DOD-M-64040A Notice 1-Inactivation
Methyl Diphenylurea
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