HG/T 5488\uff5e5491-2018
SN/T 4137-2015
Determination of benzophenone and methyl p-hydroxybenzoate in aquatic products for export - LC-MS/MS method
SN/T 3920-2014
Determination of hydroquinone,salicylic acid,phenol,2-phenoxyethanol,methyl 4-hydroxybenzoic acid easters,dichlorophen and triclosan in cosmetics for export-Liquid chromatography method
UNE-EN 15168:2007
Surface active agents - Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
DIN EN 15168
Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
BS EN 15168:2006
Surface active agents. Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
EN 15168:2006
KS M ISO 4327-2003(2023)
Non-ionic surface active agents-Polyalkoxylated derivatives -Determination of hydroxyl value-Phthalic anhydride method
ISO 6796:1981
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
ASTM D7881-20e1
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
UNE 55717:1984
SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
ASTM E326-96
Test Method for Hydroxyl Groups by Phthalic Anhydride Esterification (Withdrawn 2001)
ASTM D7883-20
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
ISO 4327:1979
Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method
ASTM D7881-20
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
ASTM D7881-19
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
ASTM D7881-13
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
ASTM D7883-19
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
ASTM D7883-13
Standard Test Method for Determination of 4-Carboxybenzaldehyde and