GB/T 6730.34-2017(\u82f1\u6587\u7248)
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
GB/T 6730.34-2017e
Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method
GB/T 6730.34-2017
Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method
GB/T 33317-2016
Plastics—Phenolic resins—Determination of hexamethylenetetramine content—Kjeldahl method,perchloric acid method and hydrochloric acid method
HG/T 2755-1996
GB/T 15045-2013
Fatty alkyl dimethyl tertiary amines
20231371-T-606
Plastics — Phenolic resins — Determination of hexamethylenetetramine content\r Kjeldahl method,perchloric acid method and hydrochloric acid method
\u0413\u041e\u0421\u0422 \u0420 50486-2015
Plastics. Phenolic resins. Determination of hexamethylenetetramine content
GB/T 1400-2014
Chemical reagent―Hexamethylene tetramine
GB/T 26458-2011
Fatty alkyl dimethyl amine oxides
GB/T 9015-1998
Hexamethylene tetramine for industrial use
QB/T 4084-2010
Dialkyl methyl tertiary amines
GB/T 6730.34-1986
Methods for chemical analysis of iron ores The pyrocatechol violet-cetyl trimethylamine bromide photometric method for the determination of tin content
HG/T 5949\uff5e5950-2021
GB/T 30088-2013
Determination of methyl eugenol in cosmetics by gas chromatography/mass spectrometry method
SN/T 5598-2024
QB/T 4534-2013
Fatty alkylamidopropyldimethyl amines
HG/T 5950-2021
GB/T 33089-2016
Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride
DB43/T 2200-2021