Methods for analysis of groundwater quality—Part 71：Determination of α-hexachlorocyclohexane,β-hexachlorocyclohexane,γ-hexachlorocyclohexane,δ-hexachlorocyclohexane,hexachlorobenzene,1，1-dichloro-2，2-bis(4-chorophenyl)ethylene(p，p’-DDE)1，1-dichloro-2，2-bis(4-chlorophenyl)ethane(p，p’-DDD)，1,1,-trichloro-2-(2-chlorophenyl)-2-(4-chlorophenyle)ethane (o，p’-DDT)and 1，1，1-thrichloro-2，2-bis(4-chloropheyle)ethane(p，p’-DDT)-Gas chromatography
Methods for chemical analysis of tungsten ores and molybdenum ores—Part 22:Determination of antimony content—Hydride generation atomic fluorescence spectrometry
Methods for chemical analysis of tungsten ores and molybdenum ores—Part 20:Determination of niobium,tantalum,zirconium,hafnium and 15 rare earth elements content—Inductively coupled plasma mass spectrometry
Methods for chemical analysis of tungsten ores and molybdenum ores—Part 21:Determination of arsenic content—Hydride generation atomic fluorescence spectrometry
Methods for analysis of groundwater quality—Part 91：Determination of 24 volatile halogenated hydrocarbons such as dichloromethane,vinyl chloride and 1,1-dichloroethane—Purge and trap/gas chromatography—mass spectrometry
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