GB/T 37641-2019
Determination of 2,3,5,4'-tetrahydroxystilbene-O-β-D-glucoside in cosmetics―High performance liquid chromatography
GB/T 37641-2019
Determination of chloroacetaldehyde,2,4-dihydroxy-3-methylbenzaldehyde,crotonaldehyde,acetophenone,2-pentylidenecyclohexanone and glutaral in cosmetics—High performance liquid chromatography
GB/T 37641-2019
Non-ionic surface active agents-Polyalkoxylated derivatives -Determination of hydroxyl value-Phthalic anhydride method
GB/T 37641-2019
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
GB/T 37641-2019
SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
GB/T 37641-2019
Test Method for Hydroxyl Groups by Phthalic Anhydride Esterification (Withdrawn 2001)
GB/T 37641-2019
Standard Test Method for Determination of the Content of Nitroxide Radical (4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl) in Butadiene, Styrene and Isoprene by Cyclic Voltammetry Method
GB/T 37641-2019
Standard Test Method for Hydroxyl Groups by Pyromellitic Dianhydride Esterification (Withdrawn 2003)
GB/T 37641-2019
Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method