Reference number
ISO 7027-2:2019
© ISO 2025
International Standard
ISO 7027-2:2019
Water quality — Determination of turbidity — Part 2: Semi-quantitative methods for the assessment of transparency of waters
Edition 1
2019-01
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Published (Edition 1, 2019)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 7027-2:2019

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CHF 65
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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.

General information

  • Status
     : Published
    Publication date
     : 2019-01
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 12
  • Technical Committee :
    ISO/TC 147/SC 2
    ICS :
    13.060.60 
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