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IEC/EN 60695-11-10 and IEC/EN 60695-11-10 are the two standards related to fire hazard testing.
It is an international and European standard.
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Why Fire Hazard Testing?
Safety first! The products used in our daily lives shall be safe enough. That’s why both standard organizations and market authorities are publishing such safety related standards. Fire hazard tests will ensure the material’s flammability classification, in other words it is used to determnine fire safety levels of materials used in electrical and electronic products, systems
About IEC 60695-11-10
It is one of the fire hazard testing standards. Its title is
Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical flame test methods
This standard specifies small-scale laboratory test procedures intended to compare the burning behaviour of different materials used in electrotechnical products when vertically or horizontally oriented test bar specimens are exposed to a small flame ignition source with a nominal thermal power of 50 W. These test methods determine either the linear burning rate or the self-extinguishing properties of materials.
These test methods are applicable to solid and cellular materials that have an apparent density of more than 250 kg/m3, determined in accordance with ISO 845.
Two test methods are described:
1) Method A is a horizontal burning test and is intended to determine the linear burning rate of materials under specific test conditions.
2) Method B is a vertical burning test and is intended to determine whether materials self-extinguish under
specific test conditions.
About IEC 60695-11-20
It is one of the fire hazard testing standards. Its title is
Fire hazard testing – Part 11-20: Test flames – 500 W flame test method
This standard describes a test method consisting of two small-scale laboratory test procedures which is intended to compare the burning behaviour of different materials used in electrotechnical products. Vertically oriented bar specimens or horizontally oriented plate test specimens are exposed to a small flame ignition source with a nominal thermal power of 500 W. The test method uses two test specimen configurations to classify material performance. Rectangular bar-shaped test specimens are used to assess ignitability and burning behaviour, and square plate test specimens are used to assess the resistance of the test specimen to burn-through. This test method only applies to materials that have been classified as V-0 or V-1 according to IEC 60695-11-10.
This standard is only applicable to solid and cellular materials that have an apparent density of more than 250 kg/m3, determined in accordance with ISO 845. The method does not apply to materials that shrink away from the applied flame without igniting due to their
thinness. The test method described provides classifications which may be used for quality assurance, the pre-selection of component materials of products, or to verify the required minimum flammability classification of materials used in end products. If used for pre-selection, then positive results shall be obtained at a test specimen thickness which equals the smallest thickness used in the product application.
How to prepare test samples or specimens for fire hazard testing?
Standards mention how to prepare the test specimens that will be subjected to tests. There are some options when preparing, here is the related article of the standards:
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