BS 3680-4F:1990
Current
The latest, up-to-date edition.
Methods of measurement of liquid flow in open channels. Weirs and flumes Round nose horizontal broad-crested weirs
Hardcopy , PDF
English
31-08-1990
Important note : Users cannot be edited or removed once added to your Multi user PDF.Deals with the measurement of flow under steady flow conditions. Covers installation, maintenance, head measurement, design details, discharge equation, uncertainties in flow measurement and an example on computation of discharge.
| Committee |
CPI/113
|
| DevelopmentNote |
Also numbered as ISO 4374 Supersedes 88/22888 DC and BS 3680-4F(1981) (07/2005)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
1.1 This International Standard deals with the measurement of flow in rivers and artificial channels under steady flow conditions using round-nose horizontal broad-crested weirs (see Figure 1 and Figure 2).
1.2 The flow conditions considered are limited to steady flows which are uniquely dependent on the upstream head. Drowned flows, which depend on downstream as well as upstream levels, are not covered by this International Standard.
1.3 The round-nose horizontal broad-crested weir has a good discharge range and modular limit and is appropriate for use in small- and medium-sized installations. It is particularly robust and insensitive to minor damage.
| BS 3680-1:1983 | Measurement of liquid flow in open channels. Glossary of terms |
| BS 5844:1980 | Methods of measurement of fluid flow: estimation of uncertainty of a flow-rate measurement |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.