NORMSERVIS s.r.o.

ISO 7027-2:2019

Water quality — Determination of turbidity — Part 2: Semi-quantitative methods for the assessment of transparency of waters

NORMA vydána dne 18.1.2019

Anglicky -
Elektronické PDF (2057.60 CZK)

Anglicky -
Tištěné (2057.60 CZK)




Francouzsky -
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Francouzsky -
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Informace o normě:

Označení normy: ISO 7027-2:2019
Datum vydání normy: 18.1.2019
Počet stran: 12
Přibližná hmotnost: 36 g (0.08 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO

Anotace textu normy ISO 7027-2:2019 :

Description / Abstract: This document specifies the following semi-quantitative methods for the assessment of transparency of waters: a) measurement of visual range using the transparency testing tube (applicable to transparent and slightly cloudy water), see Clause 4; b) measurement of visual range in the upper water layers using the transparency testing disc (especially applicable to surface, bathing water, waste water and often used in marine monitoring), see 5.1; c) measurement of visibility by divers in a destined depth, see 5.2. NOTE The quantitative methods using optical turbidimeters or nephelometers are described in ISO 7027-1.