GB/T 2441.9-2010
Determination of urea - Part 9: Methylenediurea content - Spectrophotometric method
GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
GB/T 2441.9-2001
Determination of Urea—Determination of methylenediurea content—Spectrophotometric method
DB43/T 2200-2021
GB/T 37640-2019
Determination of chloroacetaldehyde,2,4-dihydroxy-3-methylbenzaldehyde,crotonaldehyde,acetophenone,2-pentylidenecyclohexanone and glutaral in cosmetics—High performance liquid chromatography
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)
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
EN 15705:2010
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)
GB/T 37042-2018
Hexamethylene diisocyanate
GB/T 25254-2022
Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
GB/T 22924-2024
Determination of biuret content for compound fertilizers
HG/T 3777-2023
SH 2604.02-2003
Water treatment chemicals-solidum(ethylenedinitrilo)-tetramethylenephosphate
GB/T 22924-2008
Determination of biuret content for compound fertilizers(complex fertilizers)
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
GB/T 39882-2021
Examination methods for methylene dioxymetham phetamine in suspected drugs—Gas chromatography and gas chromatography-mass spectrometry
GB/T 42307-2023
Fertilizers and soil conditioners—Determination of biuret content of urea-based fertilizers—HPLC method
DOD DOD-M-64040A Notice 2-Reactivation
Methyl Diphenylurea