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BS ISO 4504:2023

BS ISO 4504:2023

$142.49

Plastics. Polyethylene (PE). Determination of co-monomer content by solution state 13C-NMR spectrometry

Published By Publication Date Number of Pages
BSI 2023 32
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
8 3.2 Symbols
3.3 Abbreviated terms
4 Principle
5 Reagents and materials
9 6 Apparatus
7 Preparation and preservation of test samples
8 Method A — Inverse gated decoupling method
8.1 Sample preparation
8.2 Procedure
10 8.3 Calculation
11 9 Method B — Insensitive nuclei enhanced by polarization transfer method
9.1 Sample preparation
9.2 Procedure
12 9.3 Calculation
10 Expression of results
13 11 Precision
12 Test report
14 Annex A (normative) Spectral integration method and integration limits outlines
16 Annex B (normative) Summary of formulae
18 Annex C (informative) Calculation example of method A
20 Annex D (informative) Calculation example of method B
22 Annex E (informative) Reference longitudinal relaxation time(T1) values
25 Annex F (informative) Chemical shift region of branch CH-carbon of different co-monomers
26 Annex G (informative) Summary of precision data
28 Annex H (informative) Introduction to pulse program
30 Annex I (informative) Consistency validation between method A and method B
31 Bibliography

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BS ISO 4504:2023
$142.49