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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-01-1993

Publisher

British Standards Institution

Committees responsible
National foreword
Introduction
Method
1. Scope
2. Normative references
3. Definitions
4. Sampling equipment and procedures
5. Assignment of grain sizes
6. Frequency
7. Grain size/frequency distributions
8. Selection of sampling procedure
9. Determination of sample size
10. Errors
Tables
1. Weighting factors for conversion of sampling
procedures
2. Student's t values at 95% confidence level for
various initial sample sizes
Figures
1. Pipe sampler
2. Gravel-cutter sampler
3. Sampling site selection hierarchy

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.

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.

Committee	CPI/113
DevelopmentNote	Also numbered as ISO 9195 Supersedes 89/28058 DC (07/2005) Reviewed and confirmed by BSI, November 2007. (10/2007)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

BS 3680-10C:1996

Measurement of liquid flow in open channels. Sediment transport Guide to methods of sampling of sand-bed and cohesive-bed materials

BS 3680-10C:1980	Measurement of liquid flow in open channels. Sediment transport Bed material sampling
ISO 772:1996	Hydrometric determinations — Vocabulary and symbols

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BS 3680-10E:1993

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

Table of Contents

Abstract

Scope

General Product Information

Standards Referenced By This Book

Standards Referencing This Book

Category

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