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About This Item
Full Description
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 History
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DANSK DSF/FPREN ISO 7027-2
Water quality – Determination of turbidity – Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO/FDIS 7027-2:2018)- Historical Version
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DANSK DSF/PREN ISO 7027-2
Water quality – Determination of turbidity – Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO/DIS 7027-2:2017)- Historical Version
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DANSK DS/EN ISO 7027-2
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Water quality – Determination of turbidity – Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO 7027-2:2019)- Most Recent