{"id":605597,"date":"2024-11-05T22:28:53","date_gmt":"2024-11-05T22:28:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-21501-42018\/"},"modified":"2024-11-05T22:28:53","modified_gmt":"2024-11-05T22:28:53","slug":"iso-21501-42018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-21501-42018\/","title":{"rendered":"ISO 21501-4:2018"},"content":{"rendered":"<p>This document describes a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size distribution and particle number concentration of particles suspended in air. The light scattering method described in this document is based on single particle measurements. The typical size range of particles measured by this method is between 0,1 \u00b5m and 10 \u00b5m in particle size.<\/p>\n<p>Instruments that conform to this document are used for the classification of air cleanliness in cleanrooms and associated controlled environments in accordance with ISO 14644-1 and ISO 14644-2, as well as the measurement of number and size distribution of particles in various environments.<\/p>\n<p>The following parameters are within the scope of this document:<\/p>\n<p>\u2014          size setting error;<\/p>\n<p>\u2014          counting efficiency;<\/p>\n<p>\u2014          size resolution;<\/p>\n<p>\u2014          false count;<\/p>\n<p>\u2014          maximum particle number concentration;<\/p>\n<p>\u2014          sampling flow rate error;<\/p>\n<p>\u2014          sampling time error;<\/p>\n<p>\u2014          response rate;<\/p>\n<p>\u2014          calibration interval;<\/p>\n<p>\u2014          reporting results from test and calibration.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Determination of particle size distribution \u2014 Single particle light interaction methods \u2014 Part 4: Light scattering airborne particle counter for clean spaces<\/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>2018-05<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":605608,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[294,2634],"product_tag":[],"class_list":{"0":"post-605597","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-19-120","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\/605597","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\/605608"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=605597"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=605597"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=605597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}