{"id":291132,"date":"2024-10-19T19:45:52","date_gmt":"2024-10-19T19:45:52","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-168472016\/"},"modified":"2024-10-25T16:47:15","modified_gmt":"2024-10-25T16:47:15","slug":"bs-en-168472016","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-168472016\/","title":{"rendered":"BS EN 16847:2016"},"content":{"rendered":"

This European Standard specifies a chromatographic method which allows the identification of heptagluconic acid (HGA) in fertilizers containing heptagluconic acid metal complexes.<\/p>\n

This method is applicable to EC fertilizers containing complexed micro-nutrients, which are covered by Regulation (EC) No 2003\/2003 [1].<\/p>\n

\n

NOTE For the complete names of the chelating agents mentioned in this document, see Annex E.<\/p>\n<\/blockquote>\n

PDF Catalog<\/h4>\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
4<\/td>\nContents Page <\/td>\n<\/tr>\n
5<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
6<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences <\/td>\n<\/tr>\n
7<\/td>\n6 Apparatus
7 Reagents <\/td>\n<\/tr>\n
8<\/td>\n7.1 Water,
7.2 Sample preparation solvent.
7.3 HGA stock solution,
7.4 Eluent A: ortho-phosphoric acid,
7.5 Eluent B: acetonitrile (HPLC-grade).
8 Procedure
8.1 Preparation of the HGA-metal complex sample solution <\/td>\n<\/tr>\n
9<\/td>\n8.2 Preparation of the calibration solutions
8.3 Chromatographic analysis <\/td>\n<\/tr>\n
10<\/td>\n9 Calculation of the heptagluconic acid content and expression of the results
10 Precision
10.1 Inter-laboratory test
10.2 Repeatability
10.3 Reproducibility <\/td>\n<\/tr>\n
11<\/td>\n11 Test report <\/td>\n<\/tr>\n
12<\/td>\nAnnex A (informative) Chromatograms of the standard and a typical sample solution <\/td>\n<\/tr>\n
14<\/td>\nAnnex B (informative) Absorption spectra of the HGA <\/td>\n<\/tr>\n
15<\/td>\nAnnex C (informative) Calculation of the molar ratio HGA:Metal <\/td>\n<\/tr>\n
16<\/td>\nAnnex D (informative) Statistical results of the inter-laboratory test
D.1 Inter-laboratory test
D.2 Test Samples
D.3 Inter-laboratory test procedure
D.4 Results and statistical interpretation <\/td>\n<\/tr>\n
18<\/td>\nAnnex E (informative) Complete names of chelating agents <\/td>\n<\/tr>\n
19<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Fertilizers. Determination of complexing agents in fertilizers. Identification of heptagluconic acid by chromatography<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2016<\/td>\n22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":291135,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-291132","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/291132","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\/291135"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=291132"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=291132"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=291132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}