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
NY/T 4429-2023
GB/T 4702.5-2008
Chromium metal - Determination of aluminium content - EDTA titrimetric method and flame atomic absorption spectrometric method
GB/T 4702.4-2008
Chromium metal - Determination of iron content - EDTA titrimetric method and flame atomic absorption spectrometric method
HG/T 5017-2016
Determination of ethylenediamine tetraacetic acid disodium (EDTA) and copper content in chemical copper plating effluent
HG/T 5016~5017-2016
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
YB/T 917-2017
Carbon materials—Determination of vanadium content—3,3-dimethyl naphthalene amine colorimetric method
DB43/T 2200-2021
GB/T 44501-2024
Test method for leatherette—Determination of azodicarbonamide content
GB/T 38401-2019
Leather and fur—Chemical tests—Determination of dimethyl formamide content
GB/T 6609.18-2004
Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N,N-dimethyl-P-phenylenediamine spectrophotometric method
NY/T 890-2004
Determination of available zinc,manganese,iron,copper in soil-extraction with buffered DTPA solution
GB/T 6609.10-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method
T/SSAE 42-2023
GB/T 27717-2011(\u82f1\u6587\u7248)
家具中富马酸二甲酯含量的测定
GB/T 6730.30-2017(\u82f1\u6587\u7248)
铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
SN/T 1018-2001
QB/T 5158-2017
Test method of artificialleather and synthetic leather -Test of quantitatively determine dimethylformamide