BS ISO 23977-2:2020
$102.76
Plastics. Determination of the aerobic biodegradation of plastic materials exposed to seawater – Method by measuring the oxygen demand in closed respirometer
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 22 |
This document specifies a laboratory test method for determining the degree and rate of the aerobic biodegradation level of plastic materials. Biodegradation of plastic materials is determined by measuring the oxygen demand in a closed respirometer when exposed to seawater sampled from coastal areas under laboratory conditions.
The conditions described in this document might not always correspond to the optimum conditions for the maximum degree of biodegradation, however this test method is designed to give an indication of the potential biodegradability of plastic materials.
This document addresses plastic materials but can also be used for other materials.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Principle 5 Test environment 6 Reagents |
| 12 | 6.1 Water 6.2 Natural seawater/sediment 7 Apparatus |
| 13 | 8 Procedure 8.1 Test material |
| 14 | 8.2 Reference materials 8.3 Test set up 8.4 Pre-conditioning phase |
| 15 | 8.5 Start of the test 8.6 End of the test 9 Calculation and expression of results 9.1 Calculation |
| 16 | 9.2 Visual inspection 9.3 Expression and interpretation of results |
| 17 | 10 Validity of results 11 Test report |
| 18 | Annex A (informative) Example of a respirometric system |
| 20 | Bibliography |
