DB32/T 1438-2009
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
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 23834.5-2009
Chemical analysis method for stannous sulfate - Part 5: Determination of arsenic content - Silver diethyldithiocarbamate spectrophotometry
GB/T 12687.5-1990
Chemical analysis of nitrate of rare earth for agriculture—Determination of chrome content-sys—Diphenyl carbazide spectrophotometric method
GB/T 23958-2009
Iminodiacetonitrile for industrial use
HG/T 6301-2024
GB/T 33792-2017
2,4-Diaminobenzenesulfonic acid sodium salt
HG/T 6018-2022
GB/T 40907-2021
Methods for the determination of prohibited substances in furniture products and related materials—2,4-diaminotoluene and 4,4'-methylenedianiline
HG/T 5749-2020
GB/T 5195.19-2018
Fluorspar—Determination of arsenic content—Silver diethyldithiocarbamate spectrometric method
DB43/T 2200-2021
GA/T 1795-2021
Forensic sciences—Examination methods for MDAI、2-AI、5-EAPB in suspected drugs—GC and GC-MS
ASTM D1306-88(1996)e1
Standard Test Method for Phthalic Anhydride Content of Alkyd Resins and Esters Containing Other Dibasic Acids (Gravimetric) (Withdrawn 2004)
HG/T 6035-2022
HG/T 4407-2012
GB/T 14326-2009
Determination of carbon disulfide content in benzene
GB/T 6730.37-2017
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
GA/T 1930-2021
Forensic sciences—Examination methods for MDAI、2-AI、5-EAPB in suspected drugs—LC and LC-MS