{"id":305981,"date":"2024-10-19T20:57:16","date_gmt":"2024-10-19T20:57:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-16014-12019\/"},"modified":"2024-10-25T18:32:29","modified_gmt":"2024-10-25T18:32:29","slug":"bs-iso-16014-12019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-16014-12019\/","title":{"rendered":"BS ISO 16014-1:2019"},"content":{"rendered":"

This document specifies a general method for determining the average molecular weight and the molecular weight distribution of polymers using size-exclusion chromatography (SEC).<\/p>\n

The average molecular weight and the molecular weight distribution are calculated from a calibration curve constructed using polymer standards if using one of the SEC techniques described in ISO 16014-2<\/span><\/span> to ISO 16014-4<\/span><\/span> or from a calibration curve constructed using absolute molecular weight data if using size-exclusion chromatography coupled with light-scattering detection (SEC-LS) as described in ISO 16014-5<\/span><\/span>.<\/p>\n

PDF Catalog<\/h4>\n\n\n\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
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
8<\/td>\n4 Principle
5 Reagents
5.1 Eluent
5.2 Reagent for column evaluation
5.3 Molecular weight standards <\/td>\n<\/tr>\n
9<\/td>\n5.4 Reagent for flow rate marker (internal standard)
5.5 Additives
6 Apparatus
6.1 General
6.2 Eluent reservoir
6.3 Pumping system <\/td>\n<\/tr>\n
10<\/td>\n6.4 Injector <\/td>\n<\/tr>\n
11<\/td>\n6.5 Columns
6.5.1 General
6.5.2 Determination of theoretical plate number <\/td>\n<\/tr>\n
12<\/td>\n6.5.3 Determination of resolution factor <\/td>\n<\/tr>\n
13<\/td>\n6.5.4 Determination of asymmetry factor
6.6 Detector <\/td>\n<\/tr>\n
14<\/td>\n6.7 Tubing
6.8 Temperature control
6.9 Recorder and plotter
6.10 Data-processing system
6.11 Other components
7 Procedure <\/td>\n<\/tr>\n
15<\/td>\n8 Data acquisition and processing
8.1 Data acquisition
8.2 Evaluation of data and correction of chromatograms
8.3 Data processing
8.3.1 Baseline determination
8.3.2 Determination of calculation range <\/td>\n<\/tr>\n
17<\/td>\n9 Expression of results
9.1 Calibration curve <\/td>\n<\/tr>\n
18<\/td>\n9.2 Calculation of average molecular weight
9.3 Differential molecular weight distribution curve <\/td>\n<\/tr>\n
19<\/td>\n9.4 Cumulative molecular weight distribution curve
10 Precision <\/td>\n<\/tr>\n
20<\/td>\n11 Test report
11.1 General
11.2 Apparatus and measurement parameters
11.3 Calibration of the system
11.4 Calibration curve <\/td>\n<\/tr>\n
21<\/td>\n11.5 Results <\/td>\n<\/tr>\n
22<\/td>\nAnnex A (informative) Supplementary information <\/td>\n<\/tr>\n
23<\/td>\nAnnex B (informative) Narrow molecular weight distribution standards <\/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 – General principles<\/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>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":305988,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2641],"product_tag":[],"class_list":{"0":"post-305981","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\/305981","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\/305988"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=305981"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=305981"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=305981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}