GB/T 25254-2022
Poly-(tetra methylene ether glycol)(PTMEG) for industrial use
GB/T 2441.9-2010
Determination of urea - Part 9: Methylenediurea content - Spectrophotometric method
HG/T 5868-2021
Technical specification for green-design product assessment-Polytetrarmethylene ether glycol
GB/T 25254-2010
Poly-(tetra methylene ether glycol) (PTMEG) for industrial
T/QGCML 2309-2023
T/QGCML 2308-2023
GB/T 2441.9-2001
Determination of Urea—Determination of methylenediurea content—Spectrophotometric method
HG/T 5867\uff5e5868-2021
T/CSTM 00129-2020
T/ZZB 0221-2017
T/FSI 146-2024
T/CST 24-2024
20240389-T-608
Textiles —Determination of polyhexamethylene biguanide hydrochloride
HG/T 6010-2022
T/FSI 166-2024
T/CPCIF 0203-2022
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)
T/FDSA 004-2019
HG/T 5471\uff5e5473-2018
T/QGCML 2307-2023