GB/T 7478-1987
水质 铵的测定 蒸馏和滴定法
Water quality--Determination of ammonium--Distillation and titration method
- 实施日期
- 1987-08-01
- ICS 分类
- 13.060
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。
找到 4,381 条
GB/T 7478-1987
Water quality--Determination of ammonium--Distillation and titration method
GB/T 7474-1987
Water quality--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method
GB/T 7473-1987
Water quality--Determination of copper--2,9-dimethy-1,10-phenanthroline spectrophotometric method
GB/T 7472-1987
Water quality--Determination of zinc--Spectrophotometric method with dithizone
GB/T 7471-1987
Water quality--Determination of cadmium--Spectrophotometric method with dithizone
GB/T 7470-1987
Water quality--Determination of lead--Spectrophotometric method with dithizone
GB/T 7469-1987
Water quality--Determination of the total mercury--Potassium permanganate-pootassium peralfate descomposed method--Dithizone spectrophotometric method
GB/T 7467-1987
Water quality--Determination of chromium(Ⅵ)--1,5 Diphenylcarbohydrazide spectrophotometric method
GB/T 7466-1987
Water quality--Determination of total chromium
GB 7327-1987
Silicon carbide surge arresters for A.C.systems
GB 7355-1987
Sanitary standard for lead and it’s inorganic compounds in the atmosphere
GB/T 7161-1987
Unsealed radioactive substances--Identification and certification
GB 7059.3-1986
Safety standard for light metals portable stepladder
GB 7059.2-1986
Safety standard for wood portable stepladder
GB 7059.1-1986
Safety standard for wood portable vertical ladder
GB/T 6921-1986
Determination of the concentration of airborne particulate matters
GB/T 6920-1986
Water quality--Determination of pH value--Glass electrode method
GB/T 6919-1986
Air quality--Vocabulary
GB/T 6816-1986
Water quality--Vocabulary--Part 1 and part 2
GB/T 6721-1986
Statistical standard of economic losses from injury-fatal accidents of enterprise staff and workers