{"id":638689,"date":"2024-11-06T01:08:07","date_gmt":"2024-11-06T01:08:07","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-r-8491968\/"},"modified":"2024-11-06T01:08:07","modified_gmt":"2024-11-06T01:08:07","slug":"iso-r-8491968","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-r-8491968\/","title":{"rendered":"ISO\/R 849:1968"},"content":{"rendered":"<p>Applicable to products having Fe contents of more than 0.001 % (m\/m). Preliminary hydrolysis of polyphophate acids by prolonged boiling in the presence of hydrochloric acid. Reduction of iron(III) by means of hydroxylammonium chloride. Formation of the iron(II)-2,2&#039;-dipyridyl complex in the presence of ammonium acetate at pH of 3.1 and a temperature of 75 \u00b0C (under the test conditions the phosphate ions do not interfere). Spectrophotometric measurement of the coloured complex at a wavelength of about 522 nm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Phosphoric acid for industrial use \u2014 Determination of iron content \u2014 2,2&#8242;- Bipyridyl spectrophotometric method<\/b><\/p>\n<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\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>1968-10<\/td>\n<td>8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":638702,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1007,2634],"product_tag":[],"class_list":{"0":"post-638689","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-060-30","7":"product_cat-iso","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\/638689","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\/638702"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=638689"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=638689"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=638689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}