{"id":95400,"date":"2024-10-18T10:11:01","date_gmt":"2024-10-18T10:11:01","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d1688-2\/"},"modified":"2024-10-24T20:56:01","modified_gmt":"2024-10-24T20:56:01","slug":"astm-d1688-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d1688-2\/","title":{"rendered":"ASTM-D1688"},"content":{"rendered":"<\/p>\n<div class=\"SectionLevel2\">\n<p class=\"subsec1\">1.1 These test methods cover the determination of copper in water by atomic absorption spectrophotometry. Three test methods are included as follows:<\/p>\n<\/p><\/div>\n<div class=\"ParaCenter\">\n   <\/div>\n<div class=\"SectionLevel2\">\n<p class=\"subsec1\">1.2 Either dissolved or total recoverable copper may be determined. Determination of dissolved copper requires filtration through a 0.45-?m (No. 325) membrane filter at the time of collection. In-line membrane filtration is preferable.<\/p>\n<\/p><\/div>\n<div class=\"SectionLevel2\">\n<p class=\"subsec1\">1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are mathematical conversions and may not be exact equivalents; therefore, each system shall be used independently of the other.<\/p>\n<\/p><\/div>\n<div class=\"SectionLevel2\">\n<p class=\"caveat\">1.4 <i>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 style=\"font-style:normal;font-weight:normal\">For specific hazard statements, see Note 4 , Note 6 , Note 10 , and Note 16 .<\/span><\/i><\/p>\n<\/p><\/div>\n<div class=\"SectionLevel2\">\n<p class=\"subsec1\">1.5 Three former photometric test methods were discontinued. Refer to <span style=\"font-style:normal\">Appendix X1<\/span> for historical information.<\/p>\n<\/p><\/div>\n<p>\n","protected":false},"excerpt":{"rendered":"<p><b>D1688-12 Standard Test Methods for  Copper in Water<\/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>2012<\/td>\n<td>10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":95401,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-95400","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-50","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\/95400","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\/95401"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=95400"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=95400"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=95400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}