HG/T 5697-2020
p-Sodium sulphonate benzaldehyde
HG/T 5697-2020
HG/T 5697-2020
HG/T 5697-2020
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
HG/T 5697-2020
HG/T 5697-2020
HG/T 5697-2020
Determination of seawater trace ammonium—Flow analysis,solid phase extraction and o-phthaldialdehyde fluorescence detection
HG/T 5697-2020
HG/T 5697-2020
Determination of chloroacetaldehyde,2,4-dihydroxy-3-methylbenzaldehyde,crotonaldehyde,acetophenone,2-pentylidenecyclohexanone and glutaral in cosmetics—High performance liquid chromatography
HG/T 5697-2020
Non-ionic surface active agents-Polyalkoxylated derivatives -Determination of hydroxyl value-Phthalic anhydride method
HG/T 5697-2020
Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
HG/T 5697-2020
SURFACE ACTIVE AGENTS. POLYGLYCOLS. DETERMINATION OF HYDROXYL NUMBER. PHTHALIC ANHYDRIDE ESTERIFICATION METHOD
HG/T 5697-2020
Test Method for Hydroxyl Groups by Phthalic Anhydride Esterification (Withdrawn 2001)
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
HG/T 5697-2020
Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
HG/T 5697-2020
Standard Test Method for Determination of 4-Carboxybenzaldehyde and