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ISO 7027-2:2019

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Note: This standard has a new edition: ISO 7027-2:2019

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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.

Document information

  • Standard from ISO
  • Published:
  • Expires:
  • Edition: 1
  • Version: 1
  • Document type: IS
  • ICS 13.060.60
  • ISO TC ISO/TC 147/SC 2

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