GB/T 23671-2023
2-Hydroxy-6-naphthoic acid
HG/T 2745-2023
HG/T 2745-2012
HG/T 3398-2003
O-Hydroxybenzoic acid(Salicylic acid)
GB/T 23671-2009
2-Hydroxy-6-naphthalene carboxylic acid
HG/T 2745-2006
2-Hydroxy-3-naphthoic acid
HG/T 2745-1996
T/ZZB 0704-2018
T/CRIAC 0082-2023
ASTM D3438-24
Standard Practice for Sampling and Handling Naphthalene, Maleic Anhydride, and Phthalic Anhydride
\u0413\u041e\u0421\u0422 24445.4-92
Phthalic anhydride for industrial use. Method for determination of 1,4-naphthaquinone
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
MIL MIL-D-51412 Notice 3-Validation
Dye, Red, 2,5,2',5'-Tetramethyltriphenylmethane-4,4'-Diazo-Bis-Betahydroxynaphthoic Anilide
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Test Method for Hydroxyl Groups by Phthalic Anhydride Esterification (Withdrawn 2001)
ISO 4327:1979
Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method
ISO 1389-10:1977
Phthalic anhydride for industrial use — Methods of test — Part 10: Determination of 1,4- naphthaquinone content — Colorimetric method