{"id":32123,"date":"2024-10-17T03:52:53","date_gmt":"2024-10-17T03:52:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-f312-4\/"},"modified":"2024-10-24T14:29:22","modified_gmt":"2024-10-24T14:29:22","slug":"astm-f312-4","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-f312-4\/","title":{"rendered":"ASTM-F312"},"content":{"rendered":"<\/p>\n<p>1.1 These methods cover the determination of the size distribution and quantity of particulate matter contamination from aerospace fluids isolated on a membrane filter. The microscopical techniques described may also be applied to other properly prepared samples of small particles. Two methods are described for sizing particles as follows:<\/p>\n<p>1.1.1 Method A -Particle sizes are measured as the diameter of a circle whose area is equal to the projected area of the particle.<\/p>\n<p>1.1.2 Method B -Particle sizes are measured by their longest dimension.<\/p>\n<p>1.2 The test methods are intended for application to particle contamination determination of aerospace fluids, gases, surfaces, and environments.<\/p>\n<p>1.3 These methods do not provide for sizing particles smaller than 5 [mu]m.<\/p>\n<p>Note 1-Results of these methods are subject to variables inherent in any statistical method. The use of these methods as a standard for initially establishing limits should be avoided unless ample tolerances are permissible.<\/p>\n<p>\n","protected":false},"excerpt":{"rendered":"<p><b>F312-97 Standard Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters<\/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>1997<\/td>\n<td>11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":32124,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-32123","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\/32123","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\/32124"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=32123"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=32123"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=32123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}