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Norm

ISO 7027-2:2019

Ausgabedatum: 2019 01 18

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

This document specifies the following semi-quantitative methods for the assessment of transparency of waters: a) measurement of visual range using the transparency tes...
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Herausgeber:
International Organization for Standardization
Format:
Digital | 12 Seiten
Sprache:
Englisch

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.

ISO 7027-2:2019
2019 01 18
Water quality — Determination of turbidity — Part 2: Semi-quantitative methods for the assessment of...
Norm
ISO 7027:1999
1999 12 16
Water quality — Determination of turbidity
Norm
ISO 7027:1990
1990 04 12
Water quality — Determination of turbidity
Norm
ISO 7027:1984
1984 07 01
Water quality — Determination of turbidity
Norm
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