{"id":280067,"date":"2024-10-19T18:54:53","date_gmt":"2024-10-19T18:54:53","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-6068-2-111984\/"},"modified":"2024-10-25T15:29:56","modified_gmt":"2024-10-25T15:29:56","slug":"bs-6068-2-111984","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-6068-2-111984\/","title":{"rendered":"BS 6068-2.11:1984"},"content":{"rendered":"<p><b>1.1 Substance determined<\/b><\/p>\n<p>This part of ISO 7150 specifies a manual spectrometric method for the determination of ammonium in water.<\/p>\n<blockquote>\n<p>NOTE An automated spectrometric method for the determination of ammonium will form the subject of ISO 7150\/2.<\/p>\n<\/blockquote>\n<p><b>1.2 Type of sample<\/b><\/p>\n<p>The method is applicable to the analysis of potable water, and most raw and waste waters. Application to excessively coloured or saline waters shall be preceded by distillation (see clause <b>10<\/b>). For interferences, see clause <b>9<\/b>.<\/p>\n<p><b>1.3 Range<\/b><\/p>\n<p>An ammonium nitrogen concentration, \u03f1<sub>N<\/sub> of up to 1 mg\/l, using the maximum test portion of 40 ml, can be determined. Much higher concentrations can be determined by taking smaller test portions.<\/p>\n<p><b>1.4 Limit of detection<sup>1<\/sup>)<\/b><\/p>\n<p>When using cells of optical path length 40 mm and a 40 ml test portion, the limit of detection lies within the range \u03f1<sub>N<\/sub> = 0,003 to 0,008 mg\/l.<\/p>\n<p><b>1.5 Sensitivity<sup>1<\/sup>)<\/b><\/p>\n<p>Using a 40 ml test portion and a cell of optical path length 40 mm, \u03f1<sub>N<\/sub> = 0,200 mg\/l gives an absorbance of about 0,69 units.<\/p>\n<p>Using a 40 ml test portion and a cell of optical path length 10 mm, \u03f1<sub>N<\/sub> = 0,750 mg\/l gives an absorbance of about 0,65 units.<\/p>\n<p>Applicable to the determination of ammoniacal nitrogen in drinking and waste waters in the range 0.01 to l mg\/l.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Water quality. Physical, chemical and biochemical methods &#8211; Determination of ammonium: manual spectrometric method<\/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\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>1984<\/td>\n<td>12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":280070,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2641],"product_tag":[],"class_list":{"0":"post-280067","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-50","7":"product_cat-bsi","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\/280067","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\/280070"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=280067"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=280067"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=280067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}