JT/T 1095-2022 PDF English
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Flame resistance of commercial bus interior materials
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| JT/T 1095-2016 | English | 160 |
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JT/T 1095-2022: Flame resistance of commercial bus interior materials---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JTT1095-2022
JT
TRANSPORTATION INDUSTRY STANDARD
ICS 43.020
CCS T 09
Replacing JT/T 1095-2016
Flame resistance of commercial bus interior materials
Issued on. JANUARY 13, 2022
Implemented on. APRIL 13, 2022
Issued by. Ministry of Transport of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Technical requirements... 7
5 Test method... 10
6 Transition period requirements for implementation... 11
Appendix A (Normative) Sampling requirements of test sample... 12
Appendix B (Normative) Test method and judgment requirements of melting behavior
... 14
Appendix C (Normative) Test method and judgment requirements of capability to repel
fuel or lubricant... 18
References... 20
1 Scope
This document specifies the technical requirements, test methods, implementation
transition period requirements, for the flame retardant properties of interior materials
for commercial bus.
This document is applicable to the evaluation of flame retardant properties of grade B
and grade III bus interior materials, in category M2 and category M3.
This document does not apply to school buses.
2 Normative references
The contents of the following documents constitute the essential provisions of this
document through normative references in the text. Among them, for dated references,
only the version corresponding to the date applies to this document; for undated
references, the latest version (including all amendments) applies to this document.
GB/T 2406.2-2009 Plastics - Determination of burning behavior by oxygen index -
Part 2.Ambient-temperature test
GB/T 5454 Textiles-Burning behavior - 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
3 Terms and definitions
The terms and definitions, as defined in GB/T 15089 and JT/T 1094, as well as the
following terms and definitions, apply to this document.
3.1
Oxygen index
Under the specified test conditions, when the mixed gas of oxygen and nitrogen at
a temperature of 23 °C ± 2 °C is introduced, the minimum oxygen concentration,
that can just maintain the combustion of the material, expressed in volume fraction.
[Source. GB/T 2406.2-2009, 3.1, modified]
3.2
Density of smoke
The measure of the amount of smoke, which is produced by a material, under
specified test conditions, expressed by the attenuation of light intensity passing
through the smoke.
[Source. GB 38262-2019, 3.5]
3.3
Smoke toxicity
The degree of damage or injury, which is caused by the toxic and harmful substances
in the smoke.
[Source. GB 8624-2012, 3.19, modified]
3.4
Melting behavior
The characteristics of melting droplets, foaming and other phenomena of material,
under the impact of thermal radiation.
4 Technical requirements
4.1 Material classification
The interior materials of commercial bus shall be classified according to the applied
materials in Table 1, included interior materials, used parts.
4.2 Requirements for flame retardant properties
4.2.1 The flame retardant characteristics of interior materials of commercial bus shall
meet the requirements in Table 2.
4.2.4 If the interior parts contain cavities, meanwhile the parts without cavities do not
meet the minimum size requirements, the test can be exempted.
4.2.5 When the interior parts can be separated into single material and composite
material, the test results of the separated materials shall be judged according to the
requirements in Table 2.
4.2.6 When interior materials of the same material, process, thickness, manufacturer are
used in multiple parts, the technical requirements shall cover the maximum limit
requirements for all parts of the interior material.
5 Test method
5.1 Sampling of test samples
Sampling shall be carried out, according to the provisions of Appendix A.
5.2 Horizontal combustion
Carry out the test, according to the provisions of GB 8410.
5.3 Vertical combustion
Carry out the test, according to the provisions of GB/T 32086.
5.4 Oxygen index
5.5 Smoke density
Carry out the test, according to the provisions of GB/T 8627.The test result is expressed
by the smoke density level.
5.6 Combustion performance level
Carry out the test, according to the provisions of GB/T 11785 and GB/T 8626.
5.7 Levels of smoke production characteristics
Carry out the test, according to the provisions of GB/T 11785.
5.8 Smoke toxicity level
Carry out the test, according to the provisions of GB/T 20285.
6 Transition period requirements for implementation
Models that have obtained type approval will be implemented on the 13th month, from
the date of implementation of this document.
Appendix A
(Normative)
Sampling requirements of test sample
A.1 Sampling method
A.1.1 Test samples can be cut directly from interior parts, according to the requirements
of single material and composite material. When the sampling size is not satisfied, the
raw materials can be used to make samples, that meet the standard size, according to
the same process and production process.
A.1.2 When the interior parts are made of a single material, when the actual thickness
is less than the thickness required in Table A.1, the thickness of the test sample is the
actual thickness. When the actual thickness is greater than the thickness required in
Table A.1, use the interception method or the same process and production process, to
make the sample strip conforming to the dimensions in Table A.1; meanwhile it needs
to be stated in the report.
JT/T 1095-2022
JT
TRANSPORTATION INDUSTRY STANDARD
ICS 43.020
CCS T 09
Replacing JT/T 1095-2016
Flame resistance of commercial bus interior materials
Issued on. JANUARY 13, 2022
Implemented on. APRIL 13, 2022
Issued by. Ministry of Transport of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Technical requirements... 7
5 Test method... 10
6 Transition period requirements for implementation... 11
Appendix A (Normative) Sampling requirements of test sample... 12
Appendix B (Normative) Test method and judgment requirements of melting behavior
... 14
Appendix C (Normative) Test method and judgment requirements of capability to repel
fuel or lubricant... 18
References... 20
1 Scope
This document specifies the technical requirements, test methods, implementation
transition period requirements, for the flame retardant properties of interior materials
for commercial bus.
This document is applicable to the evaluation of flame retardant properties of grade B
and grade III bus interior materials, in category M2 and category M3.
This document does not apply to school buses.
2 Normative references
The contents of the following documents constitute the essential provisions of this
document through normative references in the text. Among them, for dated references,
only the version corresponding to the date applies to this document; for undated
references, the latest version (including all amendments) applies to this document.
GB/T 2406.2-2009 Plastics - Determination of burning behavior by oxygen index -
Part 2.Ambient-temperature test
GB/T 5454 Textiles-Burning behavior - 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
3 Terms and definitions
The terms and definitions, as defined in GB/T 15089 and JT/T 1094, as well as the
following terms and definitions, apply to this document.
3.1
Oxygen index
Under the specified test conditions, when the mixed gas of oxygen and nitrogen at
a temperature of 23 °C ± 2 °C is introduced, the minimum oxygen concentration,
that can just maintain the combustion of the material, expressed in volume fraction.
[Source. GB/T 2406.2-2009, 3.1, modified]
3.2
Density of smoke
The measure of the amount of smoke, which is produced by a material, under
specified test conditions, expressed by the attenuation of light intensity passing
through the smoke.
[Source. GB 38262-2019, 3.5]
3.3
Smoke toxicity
The degree of damage or injury, which is caused by the toxic and harmful substances
in the smoke.
[Source. GB 8624-2012, 3.19, modified]
3.4
Melting behavior
The characteristics of melting droplets, foaming and other phenomena of material,
under the impact of thermal radiation.
4 Technical requirements
4.1 Material classification
The interior materials of commercial bus shall be classified according to the applied
materials in Table 1, included interior materials, used parts.
4.2 Requirements for flame retardant properties
4.2.1 The flame retardant characteristics of interior materials of commercial bus shall
meet the requirements in Table 2.
4.2.4 If the interior parts contain cavities, meanwhile the parts without cavities do not
meet the minimum size requirements, the test can be exempted.
4.2.5 When the interior parts can be separated into single material and composite
material, the test results of the separated materials shall be judged according to the
requirements in Table 2.
4.2.6 When interior materials of the same material, process, thickness, manufacturer are
used in multiple parts, the technical requirements shall cover the maximum limit
requirements for all parts of the interior material.
5 Test method
5.1 Sampling of test samples
Sampling shall be carried out, according to the provisions of Appendix A.
5.2 Horizontal combustion
Carry out the test, according to the provisions of GB 8410.
5.3 Vertical combustion
Carry out the test, according to the provisions of GB/T 32086.
5.4 Oxygen index
5.5 Smoke density
Carry out the test, according to the provisions of GB/T 8627.The test result is expressed
by the smoke density level.
5.6 Combustion performance level
Carry out the test, according to the provisions of GB/T 11785 and GB/T 8626.
5.7 Levels of smoke production characteristics
Carry out the test, according to the provisions of GB/T 11785.
5.8 Smoke toxicity level
Carry out the test, according to the provisions of GB/T 20285.
6 Transition period requirements for implementation
Models that have obtained type approval will be implemented on the 13th month, from
the date of implementation of this document.
Appendix A
(Normative)
Sampling requirements of test sample
A.1 Sampling method
A.1.1 Test samples can be cut directly from interior parts, according to the requirements
of single material and composite material. When the sampling size is not satisfied, the
raw materials can be used to make samples, that meet the standard size, according to
the same process and production process.
A.1.2 When the interior parts are made of a single material, when the actual thickness
is less than the thickness required in Table A.1, the thickness of the test sample is the
actual thickness. When the actual thickness is greater than the thickness required in
Table A.1, use the interception method or the same process and production process, to
make the sample strip conforming to the dimensions in Table A.1; meanwhile it needs
to be stated in the report.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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