Explanation of the criteria for classification and numbering of components C12.1.01
(JUL 00)
Explanation of the dates on the component's description



1.   Purpose and objectives

     An instrument for measuring the bed-load of a sandy stream.

2.   Description

     The sampler is 100 cm long, 25 cm high and has an intake 10 cm wide. It can hold 16 kg of sand.

3.   Input

     The sand bed-load.

4.   Output

     Bed-load transport integrated over a period of time.

     May be used in an alluvial stream with 50% of the particles smaller than 1.6 mm and mean velocity up to 2.5 m/s.

5.   Operational requirements and restrictions


6.   Form of presentation

     Design drawings

7.   Operational experience

     Developed in 1978 and has been used since as standard equipment on the Yangtze River.

8.   Originator and technical support

     Hydrometric centre, Yangtze Valley Planning Office, Hang Kow, China.

9.   Availability

     From the HOMS National Reference Centre for China.

10.   Conditions on use

      Cost of reproduction and mailing.


(First entered: 03 FEB 81

Last updated: 11 JUNE 81)