{"id":305989,"date":"2024-10-19T20:57:18","date_gmt":"2024-10-19T20:57:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-16014-22019\/"},"modified":"2024-10-25T18:32:31","modified_gmt":"2024-10-25T18:32:31","slug":"bs-iso-16014-22019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-16014-22019\/","title":{"rendered":"BS ISO 16014-2:2019"},"content":{"rendered":"

This document specifies a method for determining the average molecular weight and the molecular weight distribution of polymers using size-exclusion chromatography (SEC). The average molecular weight and the molecular weight distribution are calculated using a universal calibration curve instead of the conventional calibration curve.<\/p>\n

\n
\n NOTE\n <\/div>\n

This test method is classified as a relative method as described in ISO 16014-1<\/span> <\/span>, but the average molecular weights and molecular weight distributions calculated by the method are equal to, or nearly equal to, the absolute values. For details, see the Annex A<\/span>.<\/p>\n<\/p><\/div>\n

PDF Catalog<\/h4>\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
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle of universal calibration method <\/td>\n<\/tr>\n
8<\/td>\n5 Reagents
6 Apparatus
7 Procedure <\/td>\n<\/tr>\n
9<\/td>\n8 Data acquisition and processing
9 Expression of results
9.1 Preparation of universal calibration curve
9.2 Calculation of average molecular weight <\/td>\n<\/tr>\n
10<\/td>\n9.3 Differential molecular weight distribution curve
9.4 Cumulative molecular weight distribution curve
10 Precision
11 Test report
11.1 General
11.2 Apparatus and measurement parameters <\/td>\n<\/tr>\n
11<\/td>\n11.3 Calibration of the system
11.3.1 Information on the molecular weight standards
11.3.2 Calibration curve
11.4 Results <\/td>\n<\/tr>\n
12<\/td>\nAnnex A (informative) Supplementary information <\/td>\n<\/tr>\n
15<\/td>\nAnnex B (informative) K and a in the Mark-Houwink-Sakurada equation <\/td>\n<\/tr>\n
16<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Plastics. Determination of average molecular weight and molecular weight distribution of polymers using size-exclusion chromatography – Universal calibration 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>\n2019<\/td>\n18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":305990,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2641],"product_tag":[],"class_list":{"0":"post-305989","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-01","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\/305989","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\/305990"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=305989"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=305989"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=305989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}