{"id":11789,"date":"2024-10-16T20:49:39","date_gmt":"2024-10-16T20:49:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d4251\/"},"modified":"2024-10-24T11:34:27","modified_gmt":"2024-10-24T11:34:27","slug":"astm-d4251","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d4251\/","title":{"rendered":"ASTM-D4251"},"content":{"rendered":"<\/p>\n<p id=\"s00002\">1.1 This test method describes a potentiometric titration procedure for determining the anionic active matter in detergents. It is intended for the analysis of anionic surfactants such as detergent range alkylbenzenesulfonates, <span class=\"unicode\">?<\/span> -olefin sulfonates, alcohol sulfates, and alcohol ethosulfates. It has not been tested for surfactant formulations.<\/p>\n<p id=\"s00100\">1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n<p id=\"s00003\">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 class=\"med\">Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.<\/span><\/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 Method <br \/> Significance and Use <br \/> Apparatus <br \/> TABLE 1  <\/td>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Reagents <br \/> Preparation of Standard Reagents <br \/> Procedure <br \/> Calculation <br \/> Precision  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Keywords <br \/> FIG. 1   <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>D4251-89(2009) Standard Test Method for Active Matter in Anionic Surfactants by Potentiometric Titration<\/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>4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":11790,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1030,2637],"product_tag":[],"class_list":{"0":"post-11789","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-100-40","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\/11789","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\/11790"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=11789"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=11789"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=11789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}