{"id":33300,"date":"2024-10-17T04:10:01","date_gmt":"2024-10-17T04:10:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-f431-3\/"},"modified":"2024-10-24T14:38:53","modified_gmt":"2024-10-24T14:38:53","slug":"astm-f431-3","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-f431-3\/","title":{"rendered":"ASTM-F431"},"content":{"rendered":"<h3>ASTM F431-03<\/h3>\n<h4>Historical Standard: Standard Specification for Air Performance Measurement Plenum Chamber for Vacuum Cleaners<\/h4>\n<div>\n<h4>ASTM F431<\/h4>\n<p><strong>Scope<\/strong><\/p>\n<p>1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners.<\/p>\n<p>1.2 The plenum chamber is designed for vacuum measurements only. (<b>Warning<\/b>\u2014The plenum chamber has been shown to accurately determine maximum air power values at various test points for vacuum cleaners. There is a possibility that the airflow values measured with orifices larger than 2 in. at high flow rates may be erroneous due to the proximity of the top and bottom surfaces to the orifice plate inlet.)<\/p>\n<p>1.3 The foot-pound, inch system of units is used in this standard. The values in parentheses are given for information only.<\/p>\n<p><strong>Keywords<\/strong><\/p>\n<p>air performance; orifice plate; plenum chamber; vacuum cleaner<\/p>\n<p><strong>ICS Code<\/strong><\/p>\n<p>ICS Number Code 97.080 (Cleaning appliances)<\/p>\n<p><strong>DOI:<\/strong> 10.1520\/F0431-03<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><b>F431-03 Standard Specification for Air Performance Measurement Plenum Chamber for Vacuum Cleaners<\/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\/astm\/\"><b>ASTM<\/b><\/a><\/td>\n<td>2003<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":33301,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-33300","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/33300","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\/33301"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=33300"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=33300"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=33300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}