Estimating Reduced Fire Risk Resulting From an Improved Mattress Flammability Standard

3 Executive Summary 4 Introduction 8 Experimental Materials 9 Mattress/Foundation Sets 9 Bedclothes 10 Ignition Surrogates 10 Experimental Methods and Their Rationale 11 Open Hood Tests 11 Room Tests 13 Cone Calorimeter Characterization of Surrogate Materials 16 Results and Discussion 16 Heat Release Rate 16 Lateral Reach of the Flames 19 Radiant Heat Fluxes to the Surroundings 20 Ignitability of the Surrogate Materials 22 Predicted Reach for Piloted Radiative Ignition 23 Fraction of Room at Risk for Piloted Ignition 26 Piloted vs Non-piloted Ignition 30 Heat and Smoke Transport Calculations 32 Summary and Conclusions 37 Acknowledgments 39 References 40 APPENDIX 1 76 Thermal Ignition Models for Surrogate Materials 76 APPENDIX 2 78 Estimates of Fuel Package Contributions in M3 and M5 Bed Fires 78