{"id":293567,"date":"2024-10-19T19:56:51","date_gmt":"2024-10-19T19:56:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-116572014\/"},"modified":"2024-10-25T17:08:08","modified_gmt":"2024-10-25T17:08:08","slug":"bs-iso-116572014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-116572014\/","title":{"rendered":"BS ISO 11657:2014"},"content":{"rendered":"<p>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.<\/p>\n<p>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 Annex&nbsp;A, Annex&nbsp;B and Annex&nbsp;C respectively.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Section sec_1 <br \/> Section sec_2 <br \/> Section sec_3 <br \/> Section sec_3.1 <br \/> Section sec_3.2 <br \/> 1\tScope <br \/> 2\tNormative references <br \/> 3\tTerms and definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>Section sec_4 <br \/> Section sec_4.1 <br \/> Section sec_4.2 <br \/> 4\tMeasuring principles <br \/> 4.1\tTransmission <br \/> 4.2\tScattering  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Section sec_4.3 <br \/> Table tab_c <br \/> Figure fig_1 <br \/> Section sec_4.4 <br \/> Section sec_5 <br \/> Section sec_5.1 <br \/> 4.3\tTransmission\u00a0\u2014 Scattering <br \/> 4.4\tDiffraction <br \/> 5\tProperties of sediment of importance for sediment surrogate techniques <br \/> 5.1\tGeneral  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Section sec_5.2 <br \/> Section sec_5.3 <br \/> Section sec_6 <br \/> Section sec_6.1 <br \/> Section sec_6.2 <br \/> 5.2\tParticle size <br \/> 5.3\tParticle colour <br \/> 6\tMethods for determination of suspended sediment concentration by surrogate techniques <br \/> 6.1\tGeneral <br \/> 6.2\tBulk optics  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>Section sec_6.3 <br \/> Section sec_6.4 <br \/> 6.3\tLaser diffraction (LD) <br \/> 6.4\tAcoustic back scatter (ABS)  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>Section sec_7 <br \/> Section sec_7.1 <br \/> Section sec_7.2 <br \/> Section sec_7.2.1 <br \/> 7\tCalibration and validation  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>Table tab_d <br \/> Figure fig_2 <br \/> Section sec_7.2.2  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Table tab_e <br \/> Figure fig_3  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>Annex sec_A <br \/> Annex sec_A.1 <br \/> Annex sec_A.1.1 <br \/> Annex sec_A.1.2 <br \/> Annex sec_A.2 <br \/> Annex sec_A.2.1 <br \/> Annex sec_A.2.2 <br \/> Annex\u00a0A<br \/>\n(informative)<\/p>\n<p>Determination of the concentration of suspended sediment by optical techniques  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Annex sec_A.2.3 <br \/> Annex sec_A.3  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Table tab_f <br \/> Figure fig_A.1 <br \/> Annex sec_A.4  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>Annex sec_B <br \/> Annex sec_B.1 <br \/> Figure fig_B.1 <br \/> Annex sec_B.2 <br \/> Annex\u00a0B<br \/>\n(informative)<\/p>\n<p>Determination of the concentration of suspended sediment by laser diffraction technique  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>Table tab_g <br \/> Figure fig_B.2 <br \/> Annex sec_B.3  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Annex sec_C <br \/> Annex sec_C.1 <br \/> Annex\u00a0C<br \/>\n(informative)<\/p>\n<p>Determination of the concentration of suspended sediment by acoustic back scatter  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>Annex sec_C.2 <br \/> Annex sec_C.3  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>Table tab_i <br \/> Figure fig_C.1  <\/td>\n<\/tr>\n<tr>\n<td><b>26<b><\/td>\n<td>Reference ref_1 <br \/> Reference ref_2 <br \/> Reference ref_3 <br \/> Reference ref_4 <br \/> Reference ref_5 <br \/> Reference ref_6 <br \/> Reference ref_7 <br \/> Reference ref_8 <br \/> Reference ref_9 <br \/> Reference ref_10 <br \/> Reference ref_11 <br \/> Reference ref_12 <br \/> Reference ref_13 <br \/> Reference ref_14 <br \/> Reference ref_15 <br \/> Reference ref_16 <br \/> Reference ref_17 <br \/> Bibliography  <\/td>\n<\/tr>\n<tr>\n<td><b>27<b><\/td>\n<td>Reference ref_18 <br \/> Reference ref_19 <br \/> Reference ref_20 <br \/> Reference ref_21 <br \/> Reference ref_22 <br \/> Reference ref_23 <br \/> Reference ref_24 <br \/> Reference ref_25 <br \/> Reference ref_26 <br \/> Reference ref_27 <br \/> Reference ref_28 <br \/> Reference ref_29 <br \/> Reference ref_30 <br \/> Reference ref_31  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>Reference ref_32 <br \/> Reference ref_33 <br \/> Reference ref_34 <br \/> Reference ref_35 <br \/> Reference ref_36 <br \/> Reference ref_37 <br \/> Reference ref_38 <br \/> Reference ref_39 <br \/> Reference ref_40 <br \/> Reference ref_41 <br \/> Reference ref_42 <br \/> Reference ref_43 <br \/> Reference ref_44  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Hydrometry. Suspended sediment in streams and canals. Determination of concentration by surrogate techniques<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2014<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":293571,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[265,2641],"product_tag":[],"class_list":{"0":"post-293567","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-120-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/293567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/293571"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=293567"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=293567"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=293567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}