{"id":11813,"date":"2024-10-16T20:50:12","date_gmt":"2024-10-16T20:50:12","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d4491\/"},"modified":"2024-10-24T11:34:42","modified_gmt":"2024-10-24T11:34:42","slug":"astm-d4491","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d4491\/","title":{"rendered":"ASTM-D4491"},"content":{"rendered":"<\/p>\n<p id=\"s00002\">1.1 These test methods cover procedures for determining the hydraulic conductivity (water permeability) of geotextiles in terms of permittivity under standard testing conditions, in the uncompressed state. Included are two procedures: the constant head method and the falling head method.<\/p>\n<p id=\"s00003\">1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units stated in parentheses are provided for information only.<\/p>\n<p id=\"s00004\">1.3 <span class=\"italic\">This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/span><\/p>\n<p><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>1<b><\/td>\n<td>Scope <br \/> Referenced Documents <br \/> Terminology <br \/> Summary of Test Methods  <\/td>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Significance and Use <br \/> Apparatus <br \/> Sampling <br \/> Test Water Preparation  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Specimen Preparation <br \/> FIG. 1   <\/td>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>Operator Process Control <br \/> Procedure <br \/> Calculation <br \/> FIG. 2   <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>Procedure <br \/> Calculation <br \/> Report <br \/> FIG. 3  <br \/> TABLE 1  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>Precision and Bias <br \/> Keywords <br \/> TABLE 2  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>D4491-99a(2009) Standard Test Methods for Water Permeability of Geotextiles by Permittivity<\/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>2009<\/td>\n<td>6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":11814,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[883,2637],"product_tag":[],"class_list":{"0":"post-11813","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-59-080-70","7":"product_cat-astm","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\/11813","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\/11814"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=11813"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=11813"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=11813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}