{"id":434275,"date":"2024-10-20T07:43:14","date_gmt":"2024-10-20T07:43:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-45042023\/"},"modified":"2024-10-26T14:39:02","modified_gmt":"2024-10-26T14:39:02","slug":"bs-iso-45042023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-45042023\/","title":{"rendered":"BS ISO 4504:2023"},"content":{"rendered":"
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 3.2 Symbols 3.3 Abbreviated terms 4 Principle 5 Reagents and materials <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 6 Apparatus 7 Preparation and preservation of test samples 8 Method A \u2014 Inverse gated decoupling method 8.1 Sample preparation 8.2 Procedure <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 8.3 Calculation <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 9 Method B \u2014 Insensitive nuclei enhanced by polarization transfer method 9.1 Sample preparation 9.2 Procedure <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | 9.3 Calculation 10 Expression of results <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 11 Precision 12 Test report <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Annex A (normative) Spectral integration method and integration limits outlines <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | Annex B (normative) Summary of formulae <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | Annex C (informative) Calculation example of method A <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Annex D (informative) Calculation example of method B <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Annex E (informative) Reference longitudinal relaxation time(T1) values <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | Annex F (informative) Chemical shift region of branch CH-carbon of different co-monomers <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | Annex G (informative) Summary of precision data <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | Annex H (informative) Introduction to pulse program <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | Annex I (informative) Consistency validation between method A and method B <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Plastics. Polyethylene (PE). Determination of co-monomer content by solution state 13C-NMR spectrometry<\/b><\/p>\n |