{"id":293808,"date":"2024-10-19T19:58:04","date_gmt":"2024-10-19T19:58:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-49452018\/"},"modified":"2024-10-25T17:10:01","modified_gmt":"2024-10-25T17:10:01","slug":"bs-en-iso-49452018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-49452018\/","title":{"rendered":"BS EN ISO 4945:2018"},"content":{"rendered":"

This document specifies a spectrophotometric method for the determination of nitrogen in steel.<\/p>\n

The method is applicable to the determination of nitrogen mass fraction between 0,000 6 % and 0,050 % in low alloy steels and between 0,010 % and 0,050 % in high alloy steels.<\/p>\n

The method does not apply to samples containing silicon nitrides or having silicon contents higher than 0,6 %.<\/p>\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
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle <\/td>\n<\/tr>\n
8<\/td>\n5 Reagents <\/td>\n<\/tr>\n
9<\/td>\n6 Apparatus
7 Sampling
8 Procedure
8.1 Test portion <\/td>\n<\/tr>\n
10<\/td>\n8.2 Blank test
8.3 Determination
8.3.1 Dissolution
8.3.2 Treatment of insoluble residue
8.3.3 Steam distillation (see Figure A.1, A.2 or A.3) <\/td>\n<\/tr>\n
11<\/td>\n8.3.4 Formation of the coloured complex
8.3.5 Spectrophotometric measurements
8.4 Establishment of the calibration curve
8.4.1 Preparation of the calibration solutions <\/td>\n<\/tr>\n
12<\/td>\n8.4.2 Spectrophotometric measurements
8.4.3 Plotting the calibration curve
9 Expression of results
9.1 Method of calculation <\/td>\n<\/tr>\n
13<\/td>\n9.2 Precision
10 Test report <\/td>\n<\/tr>\n
14<\/td>\nAnnex A (informative) Examples of distillation apparatus <\/td>\n<\/tr>\n
17<\/td>\nAnnex B (informative) Additional information on the international interlaboratory test <\/td>\n<\/tr>\n
20<\/td>\nAnnex C (informative) Graphical representation of precision data <\/td>\n<\/tr>\n
21<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Steel. Determination of nitrogen. Spectrophotometric method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2018<\/td>\n22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":293814,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1096,2641],"product_tag":[],"class_list":{"0":"post-293808","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-77-080-20","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\/293808","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\/293814"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=293808"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=293808"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=293808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}