HG/T 4637-2014
Guaiacol (o-Hydroxyanisole)
HG/T 4637-2014
O-Hydroxybenzoic acid(Salicylic acid)
HG/T 4637-2014
HG/T 4637-2014
Continuous casting powder - The determination of iron content - The o-phenanthroline spectrophotometric method and the flame atomic absorption method
HG/T 4637-2014
Non-ionic surface active agents-Polyalkoxylated derivatives -Determination of hydroxyl value-Phthalic anhydride method
HG/T 4637-2014
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
HG/T 4637-2014
SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
HG/T 4637-2014
Test Method for Hydroxyl Groups by Phthalic Anhydride Esterification (Withdrawn 2001)
HG/T 4637-2014
Methods for chemical analysis of continuous casting mold powder—The o-phenanthroline spctrophotometric and flame atomic absorption spectrometric method for the determination of iron content
HG/T 4637-2014
HG/T 4637-2014
Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method
HG/T 4637-2014
HG/T 4637-2014
HG/T 4637-2014