ISO 7027-2:2019
p
ISO 7027-2:2019
69545

Abstract  Preview

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 

  •  :  Published
     : 2019-01
  •  : 1
     : 12
  •  : ISO/TC 147/SC 2 Physical, chemical and biochemical methods
  •  :
    13.060.60 Examination of physical properties of water

Buy this standard

en
Format Language
std 1 58 PDF + ePub
std 2 58 Paper
  • CHF58

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.