BS EN ISO 14851:2019 – TC:2020 Edition
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Tracked Changes. Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium. Method by measuring the oxygen demand in a closed respirometer
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 71 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS EN ISO 14851:2019 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 39 | National foreword |
| 41 | European foreword |
| 43 | Foreword |
| 45 | Introduction |
| 46 | 1 Scope 2 Normative references 3 Terms and definitions |
| 48 | 4 Principle 5 Test environment 6 Reagents |
| 49 | 6.1 Distilled or deionized water 6.2 Test medium 6.2.1 Standard test medium 6.2.2 Optimized test medium |
| 51 | 6.3 Pyrophosphate solution 6.4 Carbon dioxide absorber 7 Apparatus 8 Procedure 8.1 Test material |
| 52 | 8.2 Reference material 8.3 Preparation of the inoculum |
| 53 | 8.4 Test |
| 54 | 9 Calculation and expression of results 9.1 Calculation |
| 55 | 9.2 Expression and interpretation of results 10 Validity of results |
| 56 | 11 Test report |
| 57 | Annex A (informative) Theoretical oxygen demand (ThOD) |
| 58 | Annex B (informative) Correction of BOD values for interference by nitrification |
| 60 | Annex C (informative) Principle of a closed manometric respirometer |
| 62 | Annex D (informative) Two-phase closed-bottle version of the respirometric test |
| 65 | Annex E (informative) Example of the determination of a carbon balance |
| 67 | Annex F (informative) Example of a determination of the amount of water-insoluble polymer remaining at the end of a biodegradation test and the molecular mass of the polymer |
| 68 | Annex G (informative) Example of the determination of the CO2 absorbed in the absorbent |
| 70 | Bibliography |
