Flame resistance of commercial bus interior materials
1 Scope
This document specifies the technical requirements, test method, and requirements for implementation transitional period of flame resistance of commercial bus interior materials.
This document is applicable to the evaluation of flame resistance of commercial bus interior materials of Category M2 and Classes B and III of Category M3.
This document is applicable to school buses.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2406.2-2009 Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test
GB/T 5454 Textiles - Burning behaviour - Oxygen index method
GB 8410 Flammability of automotive interior materials
GB/T 8626 Test method of flammability for building materials
GB/T 8627 Test method for density of smoke from the burning or decomposition of building materials
GB/T 10707 Rubber - Determination of the burning behaviour
GB/T 11785 Reaction to fire tests for floorings - Determination of the burning behaviour using a radiant heat source
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 20285 Toxic classification of fire effluents hazard for materials
GB/T 32086 Requirement of vertical flammability characteristic and test method for certain category automobile interior material
JT/T 1094 Safety specifications for commercial bus
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15089 and JT/T 1094 and the following apply.
3.1
oxygen index
minimum oxygen concentration for maintaining the material combustion when oxygen-nitrogen mixture is introduced at 23℃±2℃ under the specified test conditions, expressed by volume fraction
[Source: GB/T 2406.2-2009, 3.1, modified]
3.2
density of smoke
measure of the smoke amount emitted by a material under specified test conditions, expressed by the attenuation of light intensity transmitted through the smoke
[Source: GB 38262-2019, 3.5]
3.3
smoke toxicity
degree of damage/harm caused by toxic and hazardous substances in the smoke
[Source: GB 8624-2012, 3.19, modified]
3.4
melting behaviour
failure of showing phenomena such as molten drop and foaming of materials when affected by thermal radiation
3.5
capability to repel fuel or lubricant
ability of materials to keep from being soaked under the action of contact with fuel oil
3.6
commercial bus interior materials
single material or composite material used in commercial buses
Note: The commercial bus interior materials do not cover electric parts (electrical modules such as air conditioner assembly control switch, wire harnesses, electrical control panel, navigator, radio receiver, DVD module, and driving combination instrument), lighting, steering wheel, air bags (curtains), vehicle body damping mat and sandwich panels with metallic outer layer and non-metallic inner layer.
3.7
single material
homogeneous integral material composed of the same materials
Note: Different materials connected discontinuously together (such as by sewing, welding or riveting) shall not be regarded as composite material, and each of the materials belongs to single material.
[Source: GB 8410-2006, 2.3, modified]
3.8
composite material
material comprising two or more layers of similar or different materials fused or adhered tightly together
[Source: GB 8410-2006, 2.2, modified]
4 Technical requirements
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Requirements for implementation transitional period
Annex A (Normative) Sampling requirements for test sample
Annex B (Normative) Test methods and judgment requirements for melting behaviour
Annex C (Normative) Test methods and judgment requirements for capability to repel fuel or lubricant
Bibliography
JT/T 1095-2022, JT 1095-2022, JTT 1095-2022, JT/T1095-2022, JT/T 1095, JT/T1095, JT1095-2022, JT 1095, JT1095, JTT1095-2022, JTT 1095, JTT1095
Introduction of JT/T 1095-2022
Flame resistance of commercial bus interior materials
1 Scope
This document specifies the technical requirements, test method, and requirements for implementation transitional period of flame resistance of commercial bus interior materials.
This document is applicable to the evaluation of flame resistance of commercial bus interior materials of Category M2 and Classes B and III of Category M3.
This document is applicable to school buses.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2406.2-2009 Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test
GB/T 5454 Textiles - Burning behaviour - Oxygen index method
GB 8410 Flammability of automotive interior materials
GB/T 8626 Test method of flammability for building materials
GB/T 8627 Test method for density of smoke from the burning or decomposition of building materials
GB/T 10707 Rubber - Determination of the burning behaviour
GB/T 11785 Reaction to fire tests for floorings - Determination of the burning behaviour using a radiant heat source
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 20285 Toxic classification of fire effluents hazard for materials
GB/T 32086 Requirement of vertical flammability characteristic and test method for certain category automobile interior material
JT/T 1094 Safety specifications for commercial bus
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15089 and JT/T 1094 and the following apply.
3.1
oxygen index
minimum oxygen concentration for maintaining the material combustion when oxygen-nitrogen mixture is introduced at 23℃±2℃ under the specified test conditions, expressed by volume fraction
[Source: GB/T 2406.2-2009, 3.1, modified]
3.2
density of smoke
measure of the smoke amount emitted by a material under specified test conditions, expressed by the attenuation of light intensity transmitted through the smoke
[Source: GB 38262-2019, 3.5]
3.3
smoke toxicity
degree of damage/harm caused by toxic and hazardous substances in the smoke
[Source: GB 8624-2012, 3.19, modified]
3.4
melting behaviour
failure of showing phenomena such as molten drop and foaming of materials when affected by thermal radiation
3.5
capability to repel fuel or lubricant
ability of materials to keep from being soaked under the action of contact with fuel oil
3.6
commercial bus interior materials
single material or composite material used in commercial buses
Note: The commercial bus interior materials do not cover electric parts (electrical modules such as air conditioner assembly control switch, wire harnesses, electrical control panel, navigator, radio receiver, DVD module, and driving combination instrument), lighting, steering wheel, air bags (curtains), vehicle body damping mat and sandwich panels with metallic outer layer and non-metallic inner layer.
3.7
single material
homogeneous integral material composed of the same materials
Note: Different materials connected discontinuously together (such as by sewing, welding or riveting) shall not be regarded as composite material, and each of the materials belongs to single material.
[Source: GB 8410-2006, 2.3, modified]
3.8
composite material
material comprising two or more layers of similar or different materials fused or adhered tightly together
[Source: GB 8410-2006, 2.2, modified]
4 Technical requirements
Contents of JT/T 1095-2022
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Requirements for implementation transitional period
Annex A (Normative) Sampling requirements for test sample
Annex B (Normative) Test methods and judgment requirements for melting behaviour
Annex C (Normative) Test methods and judgment requirements for capability to repel fuel or lubricant
Bibliography
