GB/T 40409-2021
Flame retardant chemical—Tetrabromophthalate diol
GB/T 40409-2021
3-Chlorophthalic anhydride for industrial use
GB/T 40409-2021
4-Chlorophthalic anhydride for industrial use
GB/T 40409-2021
GB/T 40409-2021
D-(-)-para-hydroxyphenylglycine
GB/T 40409-2021
4,4’-Sulfonyldiphenol(Bisphenol-S)
GB/T 40409-2021
GB/T 40409-2021
Non-ionic surface active agents-Polyalkoxylated derivatives -Determination of hydroxyl value-Phthalic anhydride method
GB/T 40409-2021
GB/T 40409-2021
D(-)Alpha-Parahydroxyphenylglycine Dane Salt(Methyl Potassium)
GB/T 40409-2021
Phthalic anhydride for industrial use
GB/T 40409-2021
GB/T 40409-2021
SURFACE ACTIVE AGENTS. NON-IONIC SURFACE ACTIVE AGENTS. POLYALKAXYLATED DERIVATIVES. DETEMINATION OF HYDROXYL VALUE. PHTALIC ANHYDRIDE METHOD
GB/T 40409-2021
GB/T 40409-2021
GB/T 40409-2021
GB/T 40409-2021
GB/T 40409-2021
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
GB/T 40409-2021
SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
GB/T 40409-2021