• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

BS ISO 748:1997

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Measurement of liquid flow in open channels. Velocity-area methods
Available format(s)

Hardcopy , PDF

Superseded date

15-11-2000

Language(s)

English

Published date

15-10-1997

1 Scope
2 Normative reference
3 Definitions
4 Principle of the methods of measurements
5 Selection and demarcation of site
6 Measurement of cross-sectional area
7 Measurement of velocity
8 Computation of discharge
9 Uncertainties in flow measurement
Annexes
A Correction for sag, pull, slope and temperature in
    measurement of cross-section width by tape or wire
B Measurement across the cross-section
C Corrections for wetted length of wire when measuring
    depths with wire not normal to surface
D Correction for drift
E Uncertainty of a velocity-area measurement
F Determination of mean velocity from float measurements
G Bibliography

Methods for determining the velocity and cross-sectional area of water flowing in open channels (with or without ice cover) and computing the discharge. It covers methods of employing current meters and floats to measure the velocities.

Committee
W/-
DevelopmentNote
SUPERSEDES BS 3680: PART 3A: 1980
DocumentType
Standard
Pages
48
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 748:2007 Identical

ISO 772:1996 Hydrometric determinations — Vocabulary and symbols

View more information
£232.00
Excluding VAT

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.