GB/T 14497-1993
地下水资源管理模型工作要求
Requirements for the work of groundwater resources management model
- 实施日期
- 1994-03-01
- ICS 分类
- 13.060.10
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 14497-1993
Requirements for the work of groundwater resources management model
GB/T 13922.3-1992
Performance test for water treatment equipment--Filter
GB/T 13580.9-1992
Determination of chloride in wet precipitation--Ferrithiocyanate spectrophotometry
GB/T 13580.8-1992
Determination of nitrate in the wet precipitation
GB/T 13580.7-1992
Determination of nitrite in the wet precipitation--N-(1-naphthyl)-1, 2-diaminoethane dihydrochloride spectrophotometry
GB/T 13580.6-1992
Determination of sulfate in the wet precipitation
GB/T 13580.5-1992
Determination of fluoride, chloride, ntrite, nitrate, salfate in the wet precipitation--Ion chromotography
GB/T 13580.4-1992
Determination of pH value of the wet precipitation--Glass electrode method
GB/T 13580.3-1992
Determination of specific conductance in the wet precipitation
GB/T 13580.2-1992
Collection and preservation of the wet precipitation sample
GB/T 13580.13-1992
Determination of calcium and magnesium in the wet precipitation--Atomic absorption spectrophotometry
GB/T 13580.12-1992
Determination of sodium andpotassium in the wet precipitation--Atomic absorption spectrophotometry
GB/T 13580.1-1992
General principles for analytical methods of the wet precipitation
GB/T 13580.11-1992
Determination of ammonium in the wet precipitation
GB/T 13580.10-1992
Determination of fluoride in the wet precipitation--Fluor reagent spectrophotometry
GB 13457-1992
Discharge standard of water pollutants for meat packing industry
GB 4287-1992
Discharge standard of water pollutants for dyeing and finishing of textile industry
GB 13456-1992
Discharge standard of water pollutants for iron and steel industry
GB/T 13268-1991
Atmospheric air--Test dust standard sample--Loess dust
GB/T 13269-1991
Atmospheric air--Test dust standard sample--Fly ash