BS ISO 1088:2007
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
07-31-2007
Foreword
Introduction
1 Scope
2 Normative references
3 Symbols and abbreviated terms
4 Types of errors and procedure for estimating the
uncertainties in flow measurement
4.1 Principle
4.2 Occurrence of error
4.3 Sources of error
4.4 Determination of the individual components of
the uncertainty
4.5 Total uncertainty in discharge
5 Collection and processing of data for the investigation
of component uncertainties - type A evaluation of
uncertainties
5.1 Data on the local point velocity
5.2 Data on the average velocity
5.3 Data on the velocity-area method
5.4 Integration method
5.5 Calibration curves
5.6 Distance measurements
5.7 Depth measurements
6 Data processing
6.1 General
6.2 Error-type i
6.3 Error-type ii - Approximation of mean velocity in
the vertical
6.4 Error-type iii - Limited number of verticals
Annex A (informative) Characteristics of rivers from which
data were collected
Annex B (normative) Effect of increasing measuring time
on uncertainty
Annex C (normative) Local point velocity measurements - Report
form
Annex D (normative) Average velocity measurements - Report
form
Annex E (normative) Velocity-area method - Report form
Annex F (informative) Examination of Error Types i, ii, and iii
Annex G (informative) Uncertainties in velocity-area measurement
components
Annex H (informative) Calculation of the uncertainty in a
current-meter gauging
Bibliography
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