AS/NZS 3837:1998
Method of test for heat and smoke release rates for materials and products using an oxygen consumption calorimeter
Sets out a test method for the determination of ignitability, heat release rates, mass loss rates, effective heat of combustion and smoke release of materials and products when exposed to controlled levels of radiant heating.
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AS/NZS 3837:1998 METHOD OF TEST FOR HEAT AND SMOKE RELEASE RATES FOR MATERIALS AND PRODUCTS USING AN OXYGEN CONSUMPTION CALORIMETER
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.1.1 General
1.1.2 Objectives
1.1.3 Test parameters
1.2 PRINCIPLE OF TEST METHOD
1.2.1 General
1.2.2 Significance and use
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Effective heat of combustion
1.4.2 Heating flux
1.4.3 Net heat of combustion
1.4.4 Orientation
1.4.5 Oxygen consumption principle
1.4.6 Sustained flaming
1.5 APPLICATION TO FIRE HAZARD ASSESSMENT
1.6 HAZARD WARNINGS
1.6.1 General
1.6.2 Temperatures
1.6.3 Eye protection
1.6.4 Ventilation
1.7 MATHEMATICAL SYMBOLS
SECTION 2 APPARATUS, SPECIMENS AND TEST PROCEDURES
2.1 TEST APPARATUS
2.1.1 General
2.1.2 Conical heater
2.1.3 Temperature controller
2.1.4 Exhaust system
2.1.6 Specimen mounting
2.1.7 Radiation shield
2.1.8 Ignition circuit
2.1.9 Ignition timer
2.1.10 Gas sampling
2.1.11 Oxygen analyser
2.1.12 Smoke measuring system
2.1.13 Heat flux meter
2.2 TEST SPECIMENS
2.2.1 Product suitability
2.2.2 Number
2.2.3 Size and preparation
2.2.4 Conditioning
2.3 TEST ENVIRONMENT
2.4 CALIBRATION OF APPARATUS
2.4.1 Heater flux calibration
2.4.2 Oxygen analyser calibration
2.4.3 Heat release rate calibration
2.4.4 Load cell calibration
2.4.5 Smoke meter calibration
2.5 TEST PROCEDURE
2.5.1 Preparation
2.5.2 Procedure
2.6 TEST LIMITATIONS
SECTION 3 CALCULATIONS AND REPORTING OF RESULTS
3.1 CALCULATIONS
3.1.1 General
3.1.2 Calibration constant using methane
3.1.3 Calculations for test specimens
3.2 TEST REPORT
3.3 PRECISION AND BIAS
3.3.1 Precision within and between laboratories (repeatability and reproducibility)
3.3.2 Bias
3.4 COMMERCIAL LITERATURE
3.4(A) RELEVANCE OF TEST RESULTS FOR THE CALCULATION OF GROUP NUMBER FOR CLASSIFICATION OF WALL AND CEILING LININGS IN ACCORDANCE WITH THE NCC
3.4(B) VALIDITY OF EMPRICAL CORRELATION
3.5 REFERENCE IN OTHER AUSTRALIAN STANDARDS
APPENDIX A - COMMENTARY
A1 INTRODUCTION
A2 RATE OF HEAT RELEASE MEASUREMENTS
A2.1 General
A2.2 Practical applications
A2.3 Irradiance levels
A2.4 Specimen orientation
A2.5 Sustained flaming
A3 CHOICE OF OPERATING PRINCIPLE
A3.1 General
A3.2 Oxygen consumption
A4 HEATER DESIGN
A5 PILOT IGNITION
A6 BACK FACE CONDITIONS
A7 OXYGEN ANALYSER
A8 LIMITS TO RESOLUTION
A8.1 Calibration
A8.2 Response times
A9 EFFECTIVE HEAT OF COMBUSTION
A10 SMOKE OBSCURATION MEASUREMENTS
A11 SPECIMEN MOUNTING METHODS
A11.1 General
A11.2 Retainer frame
APPENDIX B - REFERENCES
APPENDIX C - DIAGRAM OF A TYPICAL OXYGEN CONSUMPTION CALORIMETER
APPENDIX D - CALCULATION OF HEAT RELEASE WITH ADDITIONAL GAS ANALYSIS
D1 INTRODUCTION
D2 MATHEMATICAL SYMBOLS
D3 REFERENCES
D4 CASE WHERE CO2 AND CO ARE MEASURED
D4.1 Time shifting
D4.2 Exhaust flow
D4.3 Heat release rate
D4.4 Oxygen depletion
D4.5 Oxygen fraction
D4.6 Commentary
D5 CASE WHERE WATER VAPOUR IS ALSO MEASURED
D5.1 General
D5.2 Exhaust flow
D5.3 Heat release rate
D5.4 Time shifting
APPENDIX E - INTERLABORATORY TRIALS
E1 AUSTRALIA
E2 INTERNATIONAL
E2.1 Scope of studies
E2.2 Method of analysis
E2.3 Example of using r and R relationships
E2.4 Comparison to results for other fire tests
Amendments
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Related Information
Building Code Compliance Document C
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: VM2
Citation context:Building Code Compliance Document C
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: VM2
Citation context:Refers to 3837:1998(AS/NZS)A1.
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AS/NZS 3837:1998 A1
Method of test for heat and smoke release rates for materials and products using an oxygen consumption calorimeter: Amendment 1:2012
AS/NZS 3837:1998 METHOD OF TEST FOR HEAT AND SMOKE RELEASE RATES FOR MATERIALS AND PRODUCTS USING AN OXYGEN CONSUMPTION CALORIMETER
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.1.1 General
1.1.2 Objectives
1.1.3 Test parameters
1.2 PRINCIPLE OF TEST METHOD
1.2.1 General
1.2.2 Significance and use
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Effective heat of combustion
1.4.2 Heating flux
1.4.3 Net heat of combustion
1.4.4 Orientation
1.4.5 Oxygen consumption principle
1.4.6 Sustained flaming
1.5 APPLICATION TO FIRE HAZARD ASSESSMENT
1.6 HAZARD WARNINGS
1.6.1 General
1.6.2 Temperatures
1.6.3 Eye protection
1.6.4 Ventilation
1.7 MATHEMATICAL SYMBOLS
SECTION 2 APPARATUS, SPECIMENS AND TEST PROCEDURES
2.1 TEST APPARATUS
2.1.1 General
2.1.2 Conical heater
2.1.3 Temperature controller
2.1.4 Exhaust system
2.1.6 Specimen mounting
2.1.7 Radiation shield
2.1.8 Ignition circuit
2.1.9 Ignition timer
2.1.10 Gas sampling
2.1.11 Oxygen analyser
2.1.12 Smoke measuring system
2.1.13 Heat flux meter
2.2 TEST SPECIMENS
2.2.1 Product suitability
2.2.2 Number
2.2.3 Size and preparation
2.2.4 Conditioning
2.3 TEST ENVIRONMENT
2.4 CALIBRATION OF APPARATUS
2.4.1 Heater flux calibration
2.4.2 Oxygen analyser calibration
2.4.3 Heat release rate calibration
2.4.4 Load cell calibration
2.4.5 Smoke meter calibration
2.5 TEST PROCEDURE
2.5.1 Preparation
2.5.2 Procedure
2.6 TEST LIMITATIONS
SECTION 3 CALCULATIONS AND REPORTING OF RESULTS
3.1 CALCULATIONS
3.1.1 General
3.1.2 Calibration constant using methane
3.1.3 Calculations for test specimens
3.2 TEST REPORT
3.3 PRECISION AND BIAS
3.3.1 Precision within and between laboratories (repeatability and reproducibility)
3.3.2 Bias
3.4 COMMERCIAL LITERATURE
3.4(A) RELEVANCE OF TEST RESULTS FOR THE CALCULATION OF GROUP NUMBER FOR CLASSIFICATION OF WALL AND CEILING LININGS IN ACCORDANCE WITH THE NCC
3.4(B) VALIDITY OF EMPRICAL CORRELATION
3.5 REFERENCE IN OTHER AUSTRALIAN STANDARDS
APPENDIX A - COMMENTARY
A1 INTRODUCTION
A2 RATE OF HEAT RELEASE MEASUREMENTS
A2.1 General
A2.2 Practical applications
A2.3 Irradiance levels
A2.4 Specimen orientation
A2.5 Sustained flaming
A3 CHOICE OF OPERATING PRINCIPLE
A3.1 General
A3.2 Oxygen consumption
A4 HEATER DESIGN
A5 PILOT IGNITION
A6 BACK FACE CONDITIONS
A7 OXYGEN ANALYSER
A8 LIMITS TO RESOLUTION
A8.1 Calibration
A8.2 Response times
A9 EFFECTIVE HEAT OF COMBUSTION
A10 SMOKE OBSCURATION MEASUREMENTS
A11 SPECIMEN MOUNTING METHODS
A11.1 General
A11.2 Retainer frame
APPENDIX B - REFERENCES
APPENDIX C - DIAGRAM OF A TYPICAL OXYGEN CONSUMPTION CALORIMETER
APPENDIX D - CALCULATION OF HEAT RELEASE WITH ADDITIONAL GAS ANALYSIS
D1 INTRODUCTION
D2 MATHEMATICAL SYMBOLS
D3 REFERENCES
D4 CASE WHERE CO2 AND CO ARE MEASURED
D4.1 Time shifting
D4.2 Exhaust flow
D4.3 Heat release rate
D4.4 Oxygen depletion
D4.5 Oxygen fraction
D4.6 Commentary
D5 CASE WHERE WATER VAPOUR IS ALSO MEASURED
D5.1 General
D5.2 Exhaust flow
D5.3 Heat release rate
D5.4 Time shifting
APPENDIX E - INTERLABORATORY TRIALS
E1 AUSTRALIA
E2 INTERNATIONAL
E2.1 Scope of studies
E2.2 Method of analysis
E2.3 Example of using r and R relationships
E2.4 Comparison to results for other fire tests
Amendments
AS/NZS 3837:1998
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.