SK SSH EN ISO 7027-1:2020
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Status: Published
Gjuha: English Faqe: 23 Publikuar: 2020-08-18 Regjistri Kombëtar: 315/2020 Botim: |
Standardet ndërkombëtare që kanë lidhje
This standard is identical to:
EN ISO 7027-1:2016 CEN/TC 230
This standard is identical to:
ISO 7027-1:2016 ISO/TC 147/SC 2 |
Çmim: 25 €
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Titulli Shqip
Cilësia e ujit - Përcaktimi i turbullirës - Pjesa 1 : Metodat sasiore (ISO 7027-1:2016)
Titulli Anglisht
Water quality - Determination of turbidity - Part 1: Quantitative methods (ISO 7027-1:2016)
Scope Shqip
Asnjë informacion i shtuar.
Scope Anglisht
ISO 7027-1:2016 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water:
a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water);
b) turbidimetry, procedure for measurement of the attenuation of a radiant flux, more applicable to highly turbid waters (for example waste waters or other cloudy waters).
Turbidities measured according to the first method are presented as nephelometric turbidity units (NTU). The results typically range between <0,05 NTU and 400 NTU. Depending on the instrument design, it can also be applicable to waters of higher turbidity. There is numerical equivalence of the units NTU and formazin nephelometric unit (FNU).
Turbidity measured by the second method is expressed in formazin attenuation units (FAU), results typically range between 40 FAU and 4 000 FAU.