Résumé
PrévisualiserThis 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.
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État actuel: PubliéeDate de publication: 2019-01
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Edition: 1Nombre de pages: 12
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- ICS :
- 13.060.60 Détermination des propriétés physiques de l'eau
Acheter cette norme
fr
| Format | Langue | |
|---|---|---|
| std 1 61 | PDF + ePub | |
| std 2 61 | Papier |
- CHF61
Cycle de vie
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Précédemment
AnnuléeISO 7027:1999
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Actuellement
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