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适用范围:ISO 7887:2011 specifies four different methods, designated A to D, for the examination of colour. The previously most employed method for assessment of water colour in water treatment plants, limnological surveys, etc. was based on the hexachloroplatinate scale. Methods C and D are harmonized with this traditional procedure. Method A involves examination of apparent colour by visually observing a water sample in a bottle. This gives only preliminary information, for example for use in field work. Only the apparent colour can be reported. Method B involves determination of the true colour of a water sample using optical apparatus and is applicable to raw and potable water and to industrial water of low colour. A subclause on interferences is included. Method C involves determination of the true colour of a water sample using optical apparatus for comparison with hexachloroplatinate concentration at wavelength, λ = 410 nm. A subclause on interferences is included. Method D involves
实施日期: 2011-12-16
中标分类号: Z16 - 环境保护 - 水环境有毒害物质分析方法
ICS分类号: 13.060.60 - 环境和保健、安全
标准组织: ISO - 国际标准化组织标准
全文来源: WF
英文关键词: Chemical analysis and testing Colour Colour tests Definitions Determination Dyeing Examination of sludge Examination of waste water Impurities Inspection Investigations Parameters Physical Sampling methods Sewage Sludge Standard methods Test equipment Testing Turbidity Visual Water Water analysis Water quality Water testing
语种: 汉语
页数: 20
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