Measurement of liquid flow in open channels. Bed material sampling.

0 Introduction 4

1 Domaine d'application 4

2 Références normatives 4

3 Définitions 4

4 Unités de mesure 4

5 Choix de l'emplacement 5

6 Mode d'échantillonnage 5

7 Types d'échantillonneurs et choix des appareils 5

7.1 Échantillonneurs manuels 6

7.2 Échantillonneurs légers et téléguidés 8

7.3 Télé-échantillonneurs nécessitant un matériel de manutention 10

7.4 Échantillonnage sous la surface 13

7.5 Choix de l'échantillonneur pour les boues 13

8 Détermination de la taille de l'échantillon 14

8.1 Généralités 14

8.2 Masse des échantillons globaux particuliers de sable 15

8.3 Masse des échantillons globaux particuliers de limon et d'argile 15

8.4 Nombre d'échantillons globaux 15

9 Erreurs 16

9.1 Échantillonnage insuffisant 16

9.2 Taille de l'échantillon 16

9.3 Analyse granulométrique 17

Annexe A (informative) Bibliographie 36

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