BS ISO BRITISH STANDARD 4365:2005 Liguid flow in open channelsSediment in streams and canals Determination of concentration, particle size distribution and relative density ICS 17.120.20 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO4365:2005 National foreword This British Standard reproduces verbatim IS0 4365:2005 and implements it as the UK national standard. It supersedes BS 3680-10D:1986 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CPI/113, Hydrometry, which has the responsibility to: aid enquirers to understand the text; present to theresponsible international/European committee any enquiries on the interpretation, or proposalsfor change,and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document maybe found in theBSI Catalogue under the section entitled "International Standards Correspondence Index", or by using the"Search" facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract.Users are responsiblefor its correct application. Compliance with a British Standard does not ofitself confer immunity fromlegal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 47 and a back cover. The BSI copyright notice displayed in this document indicates when the documentwaslastissued, Amendmentsissuedsincepublication This British Standard was published under the authority Amd. No. Date Comments of the Standards Policy and Strategy Committee on 23 March 2005 @BSI 23 March 2005 ISBN 0580 456579 BSIS04365:2005 ISO INTERNATIONAL 4365 STANDARD Second edition 2005-02-01 Liquid flow in open channels Sediment in streams and canalsDetermination of concentration, particle size distribution and relative density Mesurededebitdes liquidesdansles canauxdecouverts-Sediments dansles cours d'eau et dansles canaux-Determinationdela concentration, de la distributiongranulometrique etdela densite relative Reference number ISO 4365:2005(E) BS ISO 4365:2005 = BS IS0 4365:2005 Contents Page Foreword. iv Introduction 1 Scope. 2 Normativereferences... 3 Terms and definitions. 4 Units of measurement... 5 Properties of sediment... 5.1 General...... 5.2 Properties of individual particles 5.3 Bulk characteristics.... 6 Sampling...... 3 7 Suspended sedimentconcentration... 7.1 Methodsfordeterminingthesuspendedsedimentconcentration 7.2 Expressionof concentration..... 8 Particle-size analysis.... 8.1 Particle-sizeanalysisofsuspendedsediment 8.2 Particle size analysis of bed load and bed material... 5 8.3 Expressionof theparticle-sizedistribution. 6 6 Determination of relativedensity 10 Determinationofparticle-sizedistributioncharacteristics .8 11 Data processing.. 8 AnnexA(normative)Determinationoftheconcentrationofsuspendedsedimentbythe evaporation method (for coarse sedimentparticles).... AnnexB(normative)Determinationoftheconcentrationof suspendedsedimentbythefiltration method using filter paper..... AnnexC(normative)Determinationoftheconcentrationof suspendedsedimentbythefiltration method using gooch or other crucibles.... 13 AnnexD (normative)Determination oftheparticle-sizedistributionof suspendedsediment.. Annex E (normative)Determination of the particle-size distribution of bed-load and bed material.... 19 AnnexF (normative)Determination of the relative density of sediment.. .43 Annex G(normative)Determination of the particle-size distribution characteristics. 44 Bibliography ... 47 ili BSIS04365:2005 Foreword IsO (the International Organization for Standardization) is a worldwide federat