{"id":582876,"date":"2024-11-05T20:30:10","date_gmt":"2024-11-05T20:30:10","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-104732000\/"},"modified":"2024-11-05T20:30:10","modified_gmt":"2024-11-05T20:30:10","slug":"iso-104732000","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-104732000\/","title":{"rendered":"ISO 10473:2000"},"content":{"rendered":"<p>This International Standard describes a method for the measurement of the mass of particulate matter in ambient<\/p>\n<p>air and is based on the absorption of beta rays by the particulate matter.<\/p>\n<p>This method applies to the determination of concentrations ranging from a few micrograms per cubic metre to a few<\/p>\n<p>milligrams per cubic metre contained in the atmospheres of urban, rural or industrial areas.<\/p>\n<p>The lower mass detection limit of the method is usually 15 \u00b5g to 30 \u00b5g of deposited mass per square centimetre of<\/p>\n<p>surface area, <i>S<\/i>, of the filter. This means, for a sampling time <i>t <\/i>of 3 h and a flowrate <i>q <\/i>of 1 m3\/h, that the<\/p>\n<p>concentration detection limit ranges between 5 \u00b5g\/m3 and 10 \u00b5g\/m3, computed as follows:<\/p>\n<\/p>\n<p>Sampling techniques are not included in the scope of this International Standard.<\/p>\n<p>NOTE The concentration of particulate matter is calculated by dividing the mass deposited on a filter tape or individual<\/p>\n<p>filter, by the known volume of air sampled. However, concentration is dependent on the sampling technique used, for example,<\/p>\n<p>the design of the sampling inlet. Normally, for ambient-air particle sampling, large particles are filtered out by means of a sizeselective<\/p>\n<p>inlet (for example cascade impactor or cyclone filtration). The particle size limit is defined by the characteristics of the<\/p>\n<p>sampling head.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Ambient air \u2014 Measurement of the mass of particulate matter on a filter medium \u2014 Beta-ray absorption method<\/b><\/p>\n<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\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2000-04<\/td>\n<td>18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":582891,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[203,2634],"product_tag":[],"class_list":{"0":"post-582876","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-040-20","7":"product_cat-iso","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\/582876","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\/582891"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=582876"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=582876"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=582876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}