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Standard ČSN EN ISO 7887 1.7.2012 preview

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ČSN EN ISO 7887 (757364)

Water quality - Examination and determination of colour



STANDARD published on 1.7.2012


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The information about the standard:

Designation standards: ČSN EN ISO 7887
Classification mark: 757364
Catalog number: 90836
Publication date standards: 1.7.2012
SKU: NS-169468
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Examination of physical properties of water

Annotation of standard text ČSN EN ISO 7887 (757364):

Tato norma specifikuje čtyři různé metody pro stanovení barvy, které jsou označeny A až D. Metoda A zahrnuje stanovení zdánlivé barvy vizuálním pozorováním vzorku vody v lahvi. Ta poskytuje pouze předběžnou informaci, použitelnou například při terénní práci. Metoda B zahrnuje stanovení skutečné barvy vzorku vody měřené optickým přístrojem. Metodu lze používat pro surovou a pitnou vodu a pro méně zbarvenou průmyslovou vodu. Metoda C zahrnuje stanovení skutečné barvy vzorku vody s použitím optického přístroje porovnáním s koncentrací hexachloroplatičitanu při vlnové délce = 410 nm. Metoda D zahrnuje stanovení barvy vizuálním porovnáním se standardními roztoky hexachloroplatičitanu, která je použitelná pro surovou a pitnou vodu

Preview of the standard ČSN EN ISO 7887 (757364)

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