FLAMMABILITY TESTING

FIRE HAZARD: an object or a condition with the potential to cause damage or injury from fire.

FIRE RISK: a combination of the likelihood of fire and the extremity of damage the fire would cause.

Flammability testing will help to reduce the fire risk of your product, ensuring that your products and materials are safe for consumer use. Efforts are being made by governments to reduce unnecessary death and injury caused by fires. This includes regulations giving minimum flammability requirements for products. As an independent, third party testing laboratory, kA Testing Facility can prove your product meets these requirements; protecting your brand reputation by avoiding incidents and product recalls.

Flammability testing is performed on materials and products, and is used to assess how materials or products behave when exposed to flame or heat sources. Assessments include whether the material ignites and if so, what its burn rate is. Other assessments include rate and extent of fire propagation and fire intensity.

Note that these tests on their own cannot guarantee the safety of your product. They should either be used on their own for Research and Development (R&D) purposes, or as part of complete product standards.

KA Testing Facility perform flame tests that fall within the fire hazard testing standard IEC / BS EN 60695-11.

BS EN IEC 60695-11-5
Fire hazard testing. Test flames. Needle-flame test method.

A needle flame is a small flame which simulates the one that would occur within a product due to electrical fault. The needle flame is applied to the sample (either a whole product or a component, assembly or sample of a larger product) at the point where a flame is most likely to occur.

A sample of material, either the material that normally surrounds the test specimen or a piece of tissue paper, is placed underneath the test sample. It is positioned so than any molten pieces of material that fall from the test sample during the test will land on it.

The test is considered successful under two conditions. Either the layer underneath the sample doesn’t ignite AND the test specimen isn’t glowing or aflame after the needle flame is removed OR if it is, the specimen self-extinguishes after 30 seconds, and hasn’t burnt away completely.

BS EN IEC 60695-11-10
Fire hazard testing. Test flames. 50 Watt horizontal and vertical flame test.

These tests are commonly used to compare the way different materials behave when exposed to the effects of fire. This can form an important part of research and development (R&D) as it helps you to select the most appropriate material for your product.

Rectangular samples of a material are tested both horizontally and vertically to test different aspects of the sample. The sample is secured in the necessary orientation, and its unclamped end is exposed to the 50W flame.

The horizontal sample gives the linear burning rate of the sample, while the vertical sample shows the burning behaviour, such as its burn rate and whether it self-extinguishes. These tests are repeated on samples of different materials to give comparative results.

To give accurate comparative results, pre-conditioning of the samples is recommended, with testing being carried out quickly after the pre-conditioning has ended. kA Testing Facility have a range of state-of-the-art pre-conditioning equipment within the same lab as our flame test chamber.

BS EN IEC 60695-11-20
Fire hazard testing. Test flames. 500 Watt flame.

These tests are used to compare the burning properties of materials when exposed to a 500 W flame. The comparative results will aid in material selection for your product, a key aspect of research and development (R&D).

Samples are tested in both a horizontal and a vertical orientation. Each test involves the use of a 500 W test flame.

The sample which is tested in the vertical orientation is a bar of material. The sample is exposed to the test flame, and the sample is tested for ignitability and burning behaviour. The horizontally orientated sample is a plate of material. This sample is tested for its resistance to burn through (a hole in the sample produced by the flame).

Pre-conditioning is recommended to ensure accurate results across the range of test samples. Testing should be carried out within 30 minutes of the samples leaving the test chamber. Our flame chamber is in the same lab as our conditioning equipment, ensuring that testing is carried out quickly after the samples have been conditioned.

UL 94

Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances.

The tests within UL 94 give materials a classification relative to their behaviour in the tests.?Each test has its own classification, and the material will take on that classification if it passes the test. For example: HB (horizontal burning) and V-0, V-1, V-2, 5VA or 5VB (vertical burning).

These tests are used to compare?materials by measuring and describing their flammability properties. The classification each material is designated?can be used to select the most appropriate material for your application.

Glow wire testing is another test to consider when proving the fire safety elements of your product. It assesses the plastic’s ability to resist ignition and to self-extinguish if ignited. More information can be found on our glow wire testing page.

FLAMMABILITY TESTING STANDARDS

UL94
Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances

BS EN IEC 60695-11-2
Fire hazard testing. Test flames. 1 kW pre-mixed flame

BS EN IEC 60695-11-20
Fire hazard testing. Test flames. 500 W flame

BS EN IEC 60695-11-10
Fire hazard testing. Test flames. 50 W horizontal and vertical flame test

BS EN IEC 60695-11-5
Fire hazard testing. Test flames. Needle-flame test method

THE ABOVE STANDARDS CAN BE FOUND WITHIN THE FOLLOWING PRODUCT STANDARDS.

BS EN IEC 60950
Information technology equipment. Safety. Equipment to be installed outdoors.

IEC 61730
Photovoltaic (PV) module safety qualification. Requirements for construction.

CERTIFICATES AND REPORTS

We offer a range of reports and certificates to meet your requirements.

Please visit the certificates and reports page for further information.

kA Testing Facility,
John Street,
New Basford,
Nottingham,
NG7 7HL,
UK





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