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BS ISO 16620-2:2019

BS ISO 16620-2:2019

$167.15

Plastics. Biobased content – Determination of biobased carbon content

Published By Publication Date Number of Pages
BSI 2019 34
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This document specifies a calculation method for the determination of the biobased carbon content in monomers, polymers, and plastic materials and products, based on the 14C content measurement.

This document is applicable to plastic products and plastic materials (e.g. plasticisers or modifiers), polymer resins, monomers, or additives, which are made from biobased or fossil-based constituents.

Knowing the biobased content of plastic products is useful when evaluating their environmental impact.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
10 3.2 Symbols
3.3 Abbreviated terms
11 4 Principle
5 Sampling
12 6 Determination of the 14C content
6.1 General
6.2 Principle
6.3 Procedure for the conversion of the carbon present in the sample to a suitable sample for 14C determination
6.4 Measurement techniques
13 7 Determination of the total carbon content and total organic carbon content
8 Calculation of the biobased carbon content
8.1 General
8.2 Correction factors
14 8.3 Calculation method
8.3.1 Calculation of the biobased carbon content by mass, xB
15 8.3.2 Calculation of the biobased carbon content, ļæ¼, as a fraction of TC
8.3.3 Calculation of the biobased carbon content, ļæ¼, as a fraction of TOC
8.3.4 Examples
16 9 Test report
17 Annex A (normative) Procedure for the conversion of the carbon present in the sample to a suitable sample for 14C determination
22 Annex B (normative) Method A ā€” Determination by liquid scintillation-counter method (LSC)
25 Annex C (informative) Method B ā€” 14C determination by beta-ionization
28 Annex D (normative) Method C ā€” 14C determination by accelerator mass spectrometry
31 Bibliography

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BS ISO 16620-2:2019
$167.15