BS EN ISO 4589-2:2017 – TC:2020 Edition
$217.84
Tracked Changes. Plastics. Determination of burning behaviour by oxygen index – Ambient-temperature test
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 86 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 50 | National foreword |
| 52 | European foreword |
| 55 | Foreword |
| 56 | Introduction |
| 57 | 1 Scope 2 Normative references 3 Terms and definitions |
| 58 | 4 Principle 5 Apparatus 5.1 Test chimney 5.2 Test specimen holder |
| 62 | 5.3 Gas supplies |
| 63 | 5.4 Gas control devices 5.5 Oxygen analyser 5.6 Flame igniter 5.7 Timing device |
| 64 | 5.8 Fume extraction system 5.9 Tool for preparing rolled film 6 Calibration of equipment 7 Preparation of test specimens 7.1 Sampling |
| 65 | 7.2 Test specimen dimensions and preparation |
| 67 | 7.3 Marking of test specimens 7.3.1 General 7.3.2 Marks for testing by top surface ignition 7.3.3 Marks for testing by propagating ignition 7.4 Conditioning |
| 68 | 8 Procedure for determination of oxygen index 8.1 General 8.2 Setting up the apparatus and test specimen |
| 69 | 8.3 Igniting the test specimen 8.3.1 General 8.3.2 Procedure A — Top surface ignition 8.3.3 Procedure B — Propagating ignition 8.4 Assessing the burning behaviour of individual test specimens |
| 70 | 8.5 Selecting successive volume fractions of oxygen |
| 71 | 8.6 Determining the preliminary volume fraction of oxygen 8.7 Volume fraction of oxygen changes |
| 72 | 9 Calculations and expression of results 9.1 Oxygen index |
| 73 | 9.2 Determination of k 9.3 Standard deviation of oxygen volume fraction measurements |
| 74 | 9.4 Precision of results |
| 75 | 10 Comparison with a specified minimum value of the oxygen index (short procedure) 10.1 General 10.2 Setting up the apparatus and test specimen 10.3 Igniting the test specimen 10.4 Assessing the burning behaviour of the test specimens 10.5 Expressing of results 11 Test report |
| 76 | Annex A (normative) Calibration of equipment |
| 78 | Annex B (normative) Calculation of volume fraction of oxygen |
| 79 | Annex C (informative) Typical test results sheet |
| 81 | Annex D (informative) Results obtained by interlaboratory trials on type VI specimens |
| 82 | Annex E (informative) Precision data obtained from an interlaboratory trial carried out in 1978-1980 |
| 83 | Bibliography |
