{"id":322758,"date":"2024-10-19T22:21:04","date_gmt":"2024-10-19T22:21:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-68062002\/"},"modified":"2024-10-25T20:52:44","modified_gmt":"2024-10-25T20:52:44","slug":"bs-68062002","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-68062002\/","title":{"rendered":"BS 6806:2002"},"content":{"rendered":"<p>This British Standard describes two methods for determining formaldehyde on textiles: \u201ctotal formaldehyde\u201d and \u201cfree and water-soluble formaldehyde\u201d using chromotropic acid and sulfuric acid for detection and quantification. The methods may be applied to any textile product containing a formaldehyde-based precursor.<\/p>\n<p>The methods are not compatible with and cannot be compared directly with BS EN ISO 14184-1 and BS EN ISO 14184-2.<\/p>\n<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>BRITISH STANDARD  <\/td>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>Committees responsible for this British\ufffdStandard  <\/td>\n<\/tr>\n<tr>\n<td><b>3<b><\/td>\n<td>Contents  <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>1 Scope <br \/> 2 Normative references <br \/> 3 Apparatus and reagents <br \/> 3.1 Balance <br \/> 3.2 Conical flasks <br \/> 3.3 Boiling tubes <br \/> 3.4 Sintered glass filters <br \/> 3.5 Water bath <br \/> 3.6 Volumetric flasks <br \/> 3.7 Spectrophotometer <br \/> 3.8 Purified water <br \/> 3.9 Chromotropic acid <br \/> 3.10 Concentrated sulfuric acid <br \/> 3.11 Sulfuric acid <br \/> 3.12 Sulfuric acid <br \/> 3.13 Formaldehyde solution in water <br \/> 3.14 Wetting agent  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>4 Total formaldehyde <br \/> 4.1 Principle <br \/> 4.2 Test specimens <br \/> 4.3 Procedure  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>5 Free and water-soluble formaldehyde <br \/> 5.1 Principle <br \/> 5.2 Test specimens <br \/> 5.3 Procedure  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>6 Calibration graph <br \/> 6.1 Prepare a stock solution containing approximately 5\ufffdmg\/ml of formaldehyde by diluting 370\ufffdg\/l&#8230; <br \/> 6.2 For the total formaldehyde method, dilute aliquots (2, 3, 4, 6, 8, 10, 12, 16, 20\ufffdml) of the &#8230; <br \/> 6.3 For free and water-soluble formaldehyde method, dilute aliquots (2, 3, 4, 6, 8, 10, 12, 16, 2&#8230; <br \/> 6.4 To duplicate 1.0\ufffdml aliquots of the stock solutions, add 4.0\ufffdml 7.5\ufffdM sulfuric acid ( <br \/> 7 Calibration and expression of results <br \/> 8 Test report  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Annex A (normative) <br \/> Standardization of formaldehyde stock solutions <br \/> A.1 Reagents <br \/> A.1.1 Sodium thiosulfate solution <br \/> A.1.2 Iodine solution <br \/> A.1.3 Sodium hydroxide solution <br \/> A.1.4 Sulfuric acid <br \/> A.1.5 Aqueous formaldehyde solution <br \/> A.1.6 Starch indicator <br \/> A.2 Procedure <br \/> A.3 Calculation  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Textiles. Determination of formaldehyde. Method for the determination of total and free (water extraction method) formaldehyde using chromotropic acid<\/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>2002<\/td>\n<td>12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":322765,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[878,2641],"product_tag":[],"class_list":{"0":"post-322758","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-59-080-01","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\/322758","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\/322765"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=322758"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=322758"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=322758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}