This Part lays down the assessment regulations and a test method to assess the resistance to ignition of upholstered furniture when subjected to a small flame as an ignition source.
This Part is applicable to the test and assessment of the resistance to ignition of upholstered furniture such as mattress and sofa used in public places; the test and assessment of the resistance to ignition of upholstered furniture units may refer to This Part.
2 Terms and Definitions
The following terms and definitions are applicable to this document.
2.1
Progressive smouldering
Exothermic oxidation, not accompanied by flaming, that is self-propagating, i.e. independent of the ignition source. It may or may not be accompanied by incandescence.
2.2
Flaming
Undergoing combustion in the gaseous phase with the emission of light
2.3
Afterflame
Persistent flaming of samples after ignition source is removed under specified test conditions
2.4
Afterglow
Progressive smouldering of samples after ignition source is removed or flaming is finished under test conditions.
2.5
Ignition
Progressive smouldering or flaming phenomenon of samples under the action of ignition source.
2.6
Resistance to ignition
The characteristic not easy to be ignited of samples under the action of ignition source.
2.7
Mattress
An upholstered product, which is made from elastic material or other material as inner core material and textile shell fabric or other material as surface cover, intended for sleeping upon.
2.8
Upholstered furniture unit
The components or parts which are made by the method that materials such as textile shell fabric, natural leather and artificial leather wrap elastic materials or other soft filling materials .
2.9
Sofa
The seat with elasticity and backrest which is made of soft material, wooden material or metal material .
3 Ignition Guide Line
3.1 Afterglow Ignition
The following conditions are regarded as afterglow ignition:
a) Effective fire-fighting measures must be taken where gradually anabatic afterglow characteristic of sample occurs and continuous test will be dangerous;
b) Upholstered furniture units are basically burnt out in afterglow mode during the test;
c) The afterglow of sample to ends during the test, namely the upper limb, lower limb, side face of samples or covering the whole thickness of sample.
d) Any Scorching phenomenon different from discoloration occurs during the final inspection except those found in the place near upside of ignition source or the place less than 100 mm far away from ignition source.
Any smouldering for that sample is extinct within 120s after ignition source is removed is excluded.
1 Scope 2 Terms and Definitions 3 Ignition Guide Line 3.1 Afterglow Ignition 3.2 Flaming Ignition 4 Principle 5 Safety Facilities for Test 5.1 Laboratory 5.2 Extinguishing Device 6 Test Instrument 6.1 Timer 6.2 Ignition Source System 6.3 Test Platform 7 Pretreatment and Test Environment 7.1 Pretreatment Environment 7.2 Test Environment 8 Test Program 8.1 Sample Placement 8.2 Preparation for Ignition Source System 8.3 Ignition Source Placement 8.4 Observation and Records of Combustion Process 8.5 Final Inspection 8.6 Assessment of The Resistance to Ignition 9 Product Marking 10 Test Report Appendix A (Informative) Gas Flow Control Appendix B (Informative) Flow Diagram of Match Flame Equivalent the Resistance to Ignition Test for Upholstered Furniture
1 Scope
This Part lays down the assessment regulations and a test method to assess the resistance to ignition of upholstered furniture when subjected to a small flame as an ignition source.
This Part is applicable to the test and assessment of the resistance to ignition of upholstered furniture such as mattress and sofa used in public places; the test and assessment of the resistance to ignition of upholstered furniture units may refer to This Part.
2 Terms and Definitions
The following terms and definitions are applicable to this document.
2.1
Progressive smouldering
Exothermic oxidation, not accompanied by flaming, that is self-propagating, i.e. independent of the ignition source. It may or may not be accompanied by incandescence.
2.2
Flaming
Undergoing combustion in the gaseous phase with the emission of light
2.3
Afterflame
Persistent flaming of samples after ignition source is removed under specified test conditions
2.4
Afterglow
Progressive smouldering of samples after ignition source is removed or flaming is finished under test conditions.
2.5
Ignition
Progressive smouldering or flaming phenomenon of samples under the action of ignition source.
2.6
Resistance to ignition
The characteristic not easy to be ignited of samples under the action of ignition source.
2.7
Mattress
An upholstered product, which is made from elastic material or other material as inner core material and textile shell fabric or other material as surface cover, intended for sleeping upon.
2.8
Upholstered furniture unit
The components or parts which are made by the method that materials such as textile shell fabric, natural leather and artificial leather wrap elastic materials or other soft filling materials .
2.9
Sofa
The seat with elasticity and backrest which is made of soft material, wooden material or metal material .
3 Ignition Guide Line
3.1 Afterglow Ignition
The following conditions are regarded as afterglow ignition:
a) Effective fire-fighting measures must be taken where gradually anabatic afterglow characteristic of sample occurs and continuous test will be dangerous;
b) Upholstered furniture units are basically burnt out in afterglow mode during the test;
c) The afterglow of sample to ends during the test, namely the upper limb, lower limb, side face of samples or covering the whole thickness of sample.
d) Any Scorching phenomenon different from discoloration occurs during the final inspection except those found in the place near upside of ignition source or the place less than 100 mm far away from ignition source.
Any smouldering for that sample is extinct within 120s after ignition source is removed is excluded.
Contents of GB 17927.2-2011
1 Scope
2 Terms and Definitions
3 Ignition Guide Line
3.1 Afterglow Ignition
3.2 Flaming Ignition
4 Principle
5 Safety Facilities for Test
5.1 Laboratory
5.2 Extinguishing Device
6 Test Instrument
6.1 Timer
6.2 Ignition Source System
6.3 Test Platform
7 Pretreatment and Test Environment
7.1 Pretreatment Environment
7.2 Test Environment
8 Test Program
8.1 Sample Placement
8.2 Preparation for Ignition Source System
8.3 Ignition Source Placement
8.4 Observation and Records of Combustion Process
8.5 Final Inspection
8.6 Assessment of The Resistance to Ignition
9 Product Marking
10 Test Report
Appendix A (Informative) Gas Flow Control
Appendix B (Informative) Flow Diagram of Match Flame Equivalent the Resistance to Ignition Test for Upholstered Furniture
