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분야 | ISO/TC 147/SC 2 : Physical, chemical and biochemical methods |
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적용범위 | 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 determination of colour by visual comparison with hexachloroplatinate standard solutions and can be applied to raw and drinking water. A subclause on interferences is included. Methods A and B are appropriate if the colour hue of the sample differs from the hue of the matching solution. When stating the result, the procedure used (methods A to D) is also recorded. |
국제분류(ICS)코드 | 13.060.60 : 수질의 물리적 특성 검사 |
페이지수 | 15 |
Edition | 3 |
No. | 표준번호 | 표준명 | 발행일 | 상태 |
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1 | ISO 7887:2011 | Water quality — Examination and determination of colour | 2011-12-16 | 표준 |
2 | ISO 7887:1994 | Water quality — Examination and determination of colour | 1994-08-25 | 구판 |
3 | ISO 7887:1985 | Water quality — Examination and determination of colour | 1985-02-14 | 구판 |
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