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BS ISO 11657:2014

BS ISO 11657:2014

Current

Current

The latest, up-to-date edition.

Hydrometry. Suspended sediment in streams and canals. Determination of concentration by surrogate techniques

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-30-2014

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measuring principles
5 Properties of sediment of importance for
  sediment surrogate techniques
6 Methods for determination of suspended sediment
  concentration by surrogate techniques
7 Calibration and validation
Annex A (informative) - Determination of the
        concentration of suspended sediment by
        optical techniques
Annex B (informative) - Determination of the
        concentration of suspended sediment by
        laser diffraction technique
Annex C (informative) - Determination of the
        concentration of suspended sediment
        by acoustic back scatter
Bibliography

Defines methods for determination of the concentrations and particle-size distributions of suspended sediment in streams and canals by surrogate techniques.

This International Standard specifies methods for determination of the concentrations and particle-size distributions of suspended sediment in streams and canals by surrogate techniques. Methods based on bulk-optical principle of water such as transmission and nephelometry are the most commonly used surrogates for determining suspended sediment concentrations (SSC). Instruments and techniques based on acoustic attenuation and/or acoustic backscatter principles are also in use for measurement of suspended sediment concentration. Instrumentation based on the laser diffraction principle is also used for the measurement of particle size distribution. This International Standard covers brief description of the operating principle of each method and details of some of the instruments available.

The detailed method and principle of optical and acoustical transmission, nephelometry, and optical back scatter (OBS), laser diffraction technique (LD) and acoustic back scatter technique (ABS) with their limitations are described in AnnexA, AnnexB and AnnexC respectively.

Committee
CPI/113
DevelopmentNote
Supersedes 12/30247743 DC. (09/2014)
DocumentType
Standard
Pages
32
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 11657:2014 Identical

ISO 13320:2009 Particle size analysis Laser diffraction methods
ISO/TR 9212:2015 Hydrometry Methods of measurement of bedload discharge
ISO 4365:2005 Liquid flow in open channels Sediment in streams and canals Determination of concentration, particle size distribution and relative density
ISO 4363:2002 Measurement of liquid flow in open channels Methods for measurement of characteristics of suspended sediment
ISO/TS 3716:2006 Hydrometry Functional requirements and characteristics of suspended-sediment samplers
ISO 772:1996 Hydrometric determinations — Vocabulary and symbols
ISO 7027:1999 Water quality Determination of turbidity

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Hardcopy - English
PDF - English
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