Detail of JT/T 1095-2022

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