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Homepage>BS Standards>17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.120 Measurement of fluid flow>17.120.20 Flow in open channels>BS 3680-10E:1993 Measurement of liquid flow in open channels. Sediment transport Sampling and analysis of gravel bed material
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immediate downloadReleased: 1993-01-15
BS 3680-10E:1993 Measurement of liquid flow in open channels. Sediment transport Sampling and analysis of gravel bed material

BS 3680-10E:1993

Measurement of liquid flow in open channels. Sediment transport Sampling and analysis of gravel bed material

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Standard number:BS 3680-10E:1993
Pages:16
Released:1993-01-15
ISBN:0 580 21564 4
Status:Standard
DESCRIPTION

BS 3680-10E:1993


This standard BS 3680-10E:1993 Measurement of liquid flow in open channels. Sediment transport is classified in these ICS categories:
  • 17.120.20 Flow in open channels

1.1 This International Standard specifies methods for sampling surface and subsurface gravel-bed material and the analytical procedures to determine the size distribution of gravel-bed material in open channels.

1.2 This International Standard applies to material having diameters of 2 mm and over.

1.3 In practice, gravel-bed material may consist of two components: a coarser layer on the surface and finer subsurface material. Surface material is particularly relevant to investigations of the initiation of bed material movement and flow resistance, while subsurface material is mainly relevant to investigations of bed material transport. This International Standard does not attempt to correlate these two distinct populations.

1.4 There are two sampling techniques applicable to graded gravel-bed material. One method is to collect a definable in situ volume of material which is subsequently dealt with as a bulk sample. The second method is to sample material from the surface using one of several procedures. These two methods are discussed separately in this International Standard, and conversion factors are presented which are derived from idealized homogeneous material.


Specifies methods for sampling surface and subsurface gravel-bed material and the procedures to determine the size distribution of gravel-bed material in open channels.