I.S. CEN ISO/TS 25377:2007
Current
The latest, up-to-date edition.
HYDROMETRIC UNCERTAINTY GUIDANCE (HUG)
Hardcopy , PDF
English
01-01-2007
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 ISO/IEC Guide 98 (GUM) - Basic definitions and rules
5.1 General
5.2 The uncertainty of sets of measurements
5.3 Random and systematic effects
5.4 Uncertainty models - Probability distributions
5.5 Combining uncertainties - The law of propagation
5.6 Expressing results
6 Open channel flow - Velocity area methods
6.1 General
6.2 Mean velocity, bar{V}[x]
6.3 Velocity-area determination
6.4 Stationary determination of velocity
6.5 Moving determination of velocity
6.6 Velocity-area uncertainties
6.7 Integration uncertainties [u*(F[y]),u*(F[z])]
6.8 Perimeter flow uncertainties, u(Q[p])
7 Open channel flow - Critical depth methods
7.1 General
7.2 Head and geometry determination
7.3 Iterative calculation
7.4 Evaluating uncertainty
8 Dilution methods
8.1 General
8.2 Continuous feed
8.3 Transient mass
9 Hydrometric instrumentation
9.1 Performance specifications
9.2 Validity of uncertainty statements
9.3 Manufacturer's performance specifications
9.4 Performance guide for hydrometric equipment for
use in technical standard examples
10 Guide for the drafting of uncertainty clauses in hydrometric
standards
10.1 General
10.2 Equipment, methods and measurement systems
Annex A (informative) Introduction to hydrometric uncertainty
Annex B (informative) An introduction to Monte Carlo Simulation
(MCS)
Annex C (informative) Performance guide for hydrometric
equipment for use in technical standard
examples
Bibliography
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