BSI PD IEC TS 60695-11-40:2021
$142.49
Fire hazard testing – Test flames. Confirmatory tests. Guidance
| Published By | Publication Date | Number of Pages |
| BSI | 2021 | 24 |
This part of IEC 60695, which is a Technical Specification, presents a general characterization of small-scale test flames and associated confirmatory tests based on copper block calorimetry. Guidance is presented for the selection of critical parameters in confirmatory test designs.
NOTE A theory of thermal dynamics presents, in Annex A, additional performance parameters for confirmatory tests, enabling a precise implicit mathematical characterization of confirmatory test heating curves.
This basic safety publication is intended for use by technical committee in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements, test methods or test conditions of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 5 | FOREWORD |
| 7 | INTRODUCTION |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Terms and definitions |
| 10 | 4 Test flames 4.1 General 4.2 Diffusion flames 4.3 Pre-mixed flames 4.4 Standardized test flames |
| 11 | 4.5 Critical parameters 5 Burners and fuel gases 5.1 Diffusion flame burners 5.2 Pre-mixed burners 5.2.1 Metered air pre-mixed burners Tables Table 1 – Standardized test flames with confirmatory tests |
| 12 | 5.2.2 Venturi air pre-mixed burners 5.3 Flame stabilizer 5.4 Fuel gases 6 Confirmatory test hardware 6.1 General 6.2 Copper blocks 6.2.1 Material |
| 13 | 6.2.2 Mass 6.2.3 Geometry 6.3 Thermocouple 7 Confirmatory test procedure 7.1 General 7.2 Copper block positioning |
| 14 | 7.3 Test temperature ranges 7.4 Test time ranges 7.5 Purpose of the confirmatory test Figures Figure 1 – Positioning of the copper block |
| 16 | Annex A (informative)Copper block calorimetry dynamics and theory A.1 Fundamentals of thermal dynamics of copper block Table A.1 – Typical data for a nominal 500 W methane flame |
| 17 | A.2 Calculation method for obtaining parameters A, B and C Table A.2 – Parabolic fit to initial data |
| 19 | Table A.3 – Calculated best fit data |
| 20 | A.3 Summary and conclusions Figure A.1 – Results using data from Table A.1 |
| 21 | Figure A.2 – Parabolic fit of data to 800 °C |
| 22 | Bibliography |
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