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BS 3680-4D:1989

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Methods of measurement of liquid flow in open channels. Weirs and flumes Compound gauging structures
Available format(s)

Hardcopy , PDF

Superseded date

15-08-2000

Language(s)

English

Published date

31-12-1989

Foreword
Committees responsible
Methods
1. Scope
2. Definitions and symbols
3. Characteristics of compound gauging structures
4. Installation
5. Maintenance
6. Measurement of head
7. Computation of discharge
8. Errors in flow measurement
Appendices
A. Velocity distribution
B. Drowned (non-modular) flow
C. Examples of calculations
Tables
1. Values of Cv in terms of f (h1 / h1 + P)
2. Modular dicharge (in m(cubed)/s) are a compound
    weir per metre of crest in terms of upstream head
Figures
1. Examples of velocity profiles in the approach channel
2. Example of compound weir design
3. Details of crest tappings for triangular profile
    weirs
4. Drowned flow characteristics expressed in terms of
    hp/H1 and H2/H1 versus f
5. Drowned flow reduction factor f in terms of
    hp/h1 and (h1 / h1 + P b/B)

Measurement of flow in rivers and artificial channels.

Committee
CPI/113
DevelopmentNote
BS DRAFT 97/120653 DC REFERS TO A REVISION
DocumentType
Standard
Pages
28
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS 3680-4I:1986 Methods of measurement of liquid flow in open channels. Weirs and flumes V-shaped broad crested weirs
BS 3680-4E:1980 Methods of measurement of liquid flow in open channels. Weirs and flumes Free overall weirs of finite crest width (rectangular broad-crested weirs)
BS 3680-4F:1981 Methods of measurement of liquid flow in open channels. Weirs and flumes Round-nose horizontal crest weirs
BS 3680-4G:1981 Methods of measurement of liquid flow in open channels. Weirs and flumes Flat-V weirs
BS 3680-1:1983 Measurement of liquid flow in open channels. Glossary of terms
BS 3680-4C:1981 Methods of measurement of liquid flow in open channels. Weirs and flumes Flumes
BS 3680-4H:1986 Methods of measurement of liquid flow in open channels. Weirs and flumes Guide to the selection of flow gauging structures

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