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ISO/TS 19700:2016 Controlled equivalence ratio method for the determination of hazardous components of fire effluents - Steady-state tube furnace >
ISO/TS 19700:2016 Controlled equivalence ratio method for the determination of hazardous components of fire effluents - Steady-state tube furnace, 2016
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Apparatus
- 5.1 General apparatus
- 5.2 Tubular furnace
- 5.3 Calibrated thermocouples
- 5.4 Quartz furnace tube
- 5.5 Combustion boat
- 5.6 Combustion boat drive
- 5.6.1 Mechanism
- 5.6.2 Rate of specimen introduction
- 5.7 Mixing and measurement chamber
- 5.8 Analysis of gases
- 5.9 Determination of smoke aerosols
- 5.10 Exhaust system
- 6 Air supplies
- 6.1 Primary and secondary air supplies
- 6.2 Primary airflow calibration
- 6.3 Secondary airflow calibration
- 6.4 Overall confirmation
- 7 Establishment of furnace temperature and setting of furnace temperature
- 7.1 General
- 7.2 Establishing furnace temperature profile to determine furnace suitability
- 7.3 Setting the temperature for an individual test run condition
- 8 Test specimen preparation
- 8.1 Test specimen form
- 8.2 Combustible loading
- 8.3 Specimen conditioning
- 9 Selection of test decomposition conditions
- 9.1 Selection of decomposition conditions for fire hazard analysis or fire safety engineering
- 9.2 Stage 1b): oxidative pyrolysis from externally applied radiation
- 9.3 Stage 2: well-ventilated flaming
- 9.4 Stage 3a): small vitiated fires in closed or poorly ventilated compartments
- 9.5 Stage 3b): post-flashover fires in open compartments
- 10 Procedure
- 10.1 Safety considerations
- 10.2 Decomposition of the test specimen
- 10.3 Steady-state period
- 10.4 Sampling and analysis of fire effluent
- 10.4.1 General
- 10.4.2 Sampling of fire effluent
- 10.4.3 Determination of the mass of the specimen residue
- 10.4.4 Ambient conditions
- 10.5 Validity of test run
- 11 Calculations
- 11.1 General
- 11.2 Mass-charge concentration and mass-loss concentration
- 11.2.1 Mass-charge concentration
- 11.2.2 Mass-loss concentration
- 11.3 Yield
- 11.4 Organic fraction
- 12 Test report
- 12.1 Contents of test report
- 12.2 Test laboratory details
- 12.3 Specimen details
- 12.4 Test conditions and procedures
- 13 Verification of test apparatus with PMMA
- 13.1 Procedure
- 13.2 Verification criteria
- 14 Trueness and uncertainties with respect to steady-state tube furnace concentration and yields
- 14.1 Accuracy, trueness and uncertainty
- 14.2 Accuracy and trueness of concentration and yield measurements in the steady-state tube furnace (SSTF)
- 14.3 Extent of variability of concentration and yield measurements from test specimens in the steady-state tube furnace
- 14.4 Correlation of effluent yields from the steady-state tube furnace with those obtained from large-scale compartment fire tests under the same combustion conditions
- 15 Repeatability and reproducibility
- Annex A (informative) Guidance on the choice of additional decomposition conditions
- Annex B (informative) Estimation of lethal toxic potency for combustion products according to ISO 13344 using tube-furnace data
- Annex C (informative) Application of data from the tube-furnace test to estimation and assessment of toxic hazard in fires according to ISO 13571
- Annex D (informative) Use of the tube-furnace method for bioassay purposes
- Annex E (informative) Measurement of optical density from the steady-state tube furnace
- Annex F (informative) Comparison of data from the steady-state tube furnace, the ISO 9705 room and other compartment fire experiments
- Annex G (informative) Assessment of mass-loss rate data
- Bibliography [Go to Page]