{"id":344064,"date":"2024-10-20T00:09:34","date_gmt":"2024-10-20T00:09:34","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-169562017\/"},"modified":"2024-10-25T23:30:12","modified_gmt":"2024-10-25T23:30:12","slug":"bs-en-169562017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-169562017\/","title":{"rendered":"BS EN 16956:2017"},"content":{"rendered":"

This European Standard specifies a HPLC\/UV method for the identification and quantification of hydroquinone, 3 ethers of hydroquinone and 4 corticosteroids most frequently found in illegally sold skin whitening cosmetic products: clobetasol propionate, betamethasone dipropionate, fluocinonide and fluocinolone acetonide. This standard also gives HPLC\/UV methods for the identification of 38 corticosteroids that may be found in skin whitening cosmetic products (see Annex D). This standard is not dedicated to artificial nail products or soaps.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Principle
3 Reagents <\/td>\n<\/tr>\n
10<\/td>\n4 Apparatus and equipment <\/td>\n<\/tr>\n
11<\/td>\n5 Procedure
5.1 Sample preparation
5.2 Liquid chromatography measurement conditions <\/td>\n<\/tr>\n
12<\/td>\n5.3 Detection
6 Evaluation
6.1 Identification
6.2 Quantitative determination <\/td>\n<\/tr>\n
13<\/td>\n6.3 Result expression
7 Test report <\/td>\n<\/tr>\n
14<\/td>\nAnnex\u00a0A (informative)Example of chromatograms obtained <\/td>\n<\/tr>\n
15<\/td>\nAnnex\u00a0B (informative)Validation Data for the quantitative method hydroquinone and its three ethers <\/td>\n<\/tr>\n
20<\/td>\nAnnex\u00a0C (informative)Validation data for the quantitative method for the 4 most frequently found corticosteroids <\/td>\n<\/tr>\n
26<\/td>\nAnnex\u00a0D (normative)Screening methods for the identification of hydroquinone, 3 ethers of hydroquinone and 38 corticosteroids
D.1 Principle
D.2 Reagents <\/td>\n<\/tr>\n
28<\/td>\nD.3 Apparatus and equipment
D.4 Procedure
D.4.1 Sample preparation
D.4.2 Liquid chromatography measurement conditions <\/td>\n<\/tr>\n
29<\/td>\nD.4.3 Detection
D.5 Evaluation for the screening methods
D.5.1 Identification <\/td>\n<\/tr>\n
31<\/td>\nD.6 Test report
D.7 Example chromatograms obtained for 50\u00a0\u03bcg\/ml standard solutions <\/td>\n<\/tr>\n
36<\/td>\nD.8 Alternative HPLC-UV for the identification of coeluted compounds <\/td>\n<\/tr>\n
37<\/td>\nValidation data obtained <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Cosmetics. Analytical methods. HPLC\/UV method for the identification and assay of hydroquinone, ethers of hydroquinone and corticosteroids in skin whitening cosmetic products<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":344070,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1035,2641],"product_tag":[],"class_list":{"0":"post-344064","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-100-70","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\/344064","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\/344070"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=344064"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=344064"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=344064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}