{"id":261420,"date":"2024-10-19T17:19:19","date_gmt":"2024-10-19T17:19:19","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-133252019\/"},"modified":"2024-10-25T13:05:48","modified_gmt":"2024-10-25T13:05:48","slug":"bs-iso-133252019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-133252019\/","title":{"rendered":"BS ISO 13325:2019"},"content":{"rendered":"<p>This document specifies methods for measuring tyre-to-road sound emissions from tyres fitted on a motor vehicle under coast-by conditions, i.e. when the vehicle is in free-rolling, non-powered operation. This is typically achieved by putting the transmission in the neutral or equivalent position and switching off the engine as well as all auxiliary systems not necessary for safe driving.<\/p>\n<p>This document is applicable to passenger cars and commercial vehicles as defined in <span class=\"std\"><span class=\"std-ref\">ISO&nbsp;3833<\/span><\/span>. It is not intended to be used to determine the sound contribution of tyres of vehicles running in powered condition nor for the determination of traffic sound nuisance at a given location.<\/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>2<b><\/td>\n<td>National foreword  <\/td>\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>1 Scope <br \/> 2 Normative references <br \/> 3 Terms and definitions <br \/> 4 Symbols and abbreviated terms <br \/> 4.1 LI  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>4.2 Classes of tyre <br \/> 5 General <br \/> 6 Test site  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>7 Instrumentation <br \/> 7.1 Instrumentation for acoustical measurements <br \/> 7.2 Microphones <br \/> 7.3 Temperature measurement <br \/> 7.3.1 General  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>7.3.2 Air temperature <br \/> 7.3.3 Test surface temperature <br \/> 7.4 Wind measurement <br \/> 7.5 Speed measurement <br \/> 8 Meteorological conditions and background sound <br \/> 8.1 Meteorological conditions <br \/> 8.2 Temperature correction  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>8.3 Background sound pressure level <br \/> 9 Preparation and adjustments with respect to tyres  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>10 Vehicle method <br \/> 10.1 General <br \/> 10.1.1 Test vehicle <br \/> 10.1.2 Wheel base <br \/> 10.1.3 Other measures to minimize vehicle influence on measurements <br \/> 10.1.4 Tyre load  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>10.1.5 Tyre inflation pressure <br \/> 10.1.6 Vehicle operating condition <br \/> 10.1.7 Speed range <br \/> 10.1.8 Sound pressure level readings  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>10.1.9 Number of measurements <br \/> 10.1.10 \u00a0Recommended frequency spectrum measurement <br \/> 10.2 Data processing <br \/> 10.2.1 Temperature correction <br \/> 10.2.2 Reference speeds <br \/> 10.2.3 Normalization with respect to speed  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>10.3 Test report  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Tyres. Coast-by methods for measurement of tyre-to-road sound emission<\/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>2019<\/td>\n<td>20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":261425,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1192,2641],"product_tag":[],"class_list":{"0":"post-261420","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-160-10","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\/261420","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\/261425"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=261420"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=261420"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=261420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}