BS EN ISO 846:2019 – TC:2020 Edition
$217.84
Tracked Changes. Plastics. Evaluation of the action of microorganisms
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 80 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 44 | National foreword |
| 46 | European foreword |
| 49 | Foreword |
| 51 | Introduction |
| 53 | 1 Scope 2 Normative references 3 Terms and definitions |
| 54 | 4 Principle 4.1 General 4.2 Resistance to fungi 4.2.1 Method A: Fungal-growth test 4.2.2 Method B: Determination of fungistatic effects |
| 55 | 4.3 Method C: Resistance to bacteria 4.4 Method D: Resistance to microbially active soil (soil-burial test) 4.5 Choice of properties for assessment of biodeterioration 5 Apparatus and materials 5.1 For all tests |
| 56 | 5.1.10 Distilled or deionized water. 5.2 For tests with fungi 5.2.1 Test fungi |
| 57 | 5.2.2 Stock strains 5.2.3 Solutions and nutritive media |
| 58 | 5.3 For tests with bacteria 5.4 For soil-burial tests |
| 59 | 6 Test specimens 6.1 Shape and dimensions 6.2 Specimen test series and numbers in each test series 6.2.1 Specimen test series |
| 60 | 6.2.2 Numbers in each test series 7 Preparation of specimens 7.1 Cleaning 7.2 Labelling and storage 7.3 Conditioning and weighing |
| 61 | 8 Procedures 8.1 Test temperature 8.2 Test methods 8.2.1 General 8.2.2 Fungal-growth test (method A) |
| 63 | 8.2.3 Determination of fungistatic effect (method B) |
| 64 | 8.2.4 Procedure with bacteria (method C) |
| 65 | 8.2.5 Soil-burial test (method D) |
| 66 | 9 Assessment 9.1 Assessment of fungal growth on the specimens by visual examination (methods A, B and D) |
| 67 | 9.2 Evaluation of the test specimens for the determination of changes in mass and/or in other physical properties 9.2.1 Cleaning 9.2.2 Change in mass |
| 68 | 9.2.3 Determination of changes in other physical properties 10 Expression of results 10.1 General 10.2 Visual assessment 10.3 Change in mass 10.4 Changes in other physical properties |
| 69 | 11 Accuracy of the measurements 12 Test report |
| 71 | Annex A (normative) Determination of the water content and water holding capacity of a soil |
| 73 | Annex B (normative) Negative control for Test A |
| 74 | Annex C (normative) Grid for evaluation of fungal surface growth (Test A) |
| 76 | Annex D (informative) Information on test fungi |
| 78 | Bibliography |
