Solutions / UL 94 testing for plastic flammability rating

UL 94 testing for plastic flammability rating

UL 94 flammability tests are conducted on plastic materials and parts to evaluate their fire resistance and classify them in terms of their burning characteristics. We offer testing to help ensure your material meets the required flammability criteria for its intended application.
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When is testing needed?

Flame-retardant plastics are required in several industries where materials are likely to encounter high levels of thermal stress or where the spread of fire would cause a serious safety hazard. Some examples of applications where fire resistance is paramount include construction materials, plane and car interiors, and insulators and casings in electronic products.

UL 94 testing plays a key role in ensuring and demonstrating that plastic materials used in such applications fulfill strict, internationally recognized fire safety criteria.

Plastic beads

UL 94 flammability ratings

Plastic parts and materials can be categorized into twelve classes based on the type of material and the results of UL 94 flammability tests. The following six classes (in increasing order of fire resistance) apply to solid and cellular plastics:

  • HB

  • V2

  • V1

  • V0

  • 5VB

  • 5VA

Foamed plastics can be classified as HBF, HF-2, and HF-1, while the last three classes (VTM-2, VTM-1, and VTM-0) apply to thin films unable to support themselves in a horizontal position.

Kimmo Kaukanen

Questions?

Fire testing expert Kimmo Kaukanen is happy to help.

+358 50 371 7376

Our UL 94 testing solutions

Measurlabs offers the following UL 94 tests for assessing the flammability characteristics of plastic materials: 

We also offer a range of other fire testing services, including IMO FTP code tests for materials used on ships and EN 45545-2 tests for railway materials. Do not hesitate to contact us to discuss your company’s testing needs.

Horizontal burning test for plastics - UL 94

IEC 60695-11-10, UL 94
In this test, a horizontally oriented test specimen is exposed to a small flame ignition source with a nominal thermal power of 50 W. Together with other UL 94 tests, the results are used to classify plastic materials' flammability performance. The HB classification can be achieved with this test. The test will be performed according to UL 94 sixth edition, clause 7, and you will receive an ISO 17025 accredited test report as a result.
925 €
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Vertical burning test for plastics with 50 W flame - UL 94

IEC 60695-11-10, UL 94
In the test, a vertically oriented test specimen is exposed to a small flame ignition source with a nominal thermal power of 50 W. Together with the horizontal burning test, the results are used to assess plastic materials' flammability performance. One of the following classifications can be granted on the basis of this test: V2, V1, or V0. The test will be performed according to UL 94 sixth edition, clause 8. An ISO 17025 accredited test report will be provided.
1,250 €
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Surface burning test for plastics with 500 W flame - UL 94

IEC 60695-11-20, UL 94
In this test, a vertically oriented test specimen is exposed to a small flame ignition source with a nominal thermal power of 500 W. Together with the horizontal burning test and the 50 W vertical burning test, this test is used to classify plastic materials' flammability performance. One of the following classifications can be achieved: 5VB or 5VA. The material should already be classified as V0 or V1 before this test is conducted. Testing is performed according to UL 94 sixth edition, clause 9. You will receive an ISO 17025 accredited report as a result.
1,357 €
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Horizontal burning test for foamed plastics - UL 94

UL 94
In this test, a horizontally oriented test specimen is exposed to a small flame ignition source with a nominal thermal power of 50 W after being conditioned as per the UL 94 standard. This test is used to classify foamed plastics into one of the following classes: HBF, HF-1, or HF-2. Testing is performed according to UL 94 sixth edition, clause 12, and you will receive an ISO 17025 accredited test report as a result.
929 €
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Prices excluding VAT.

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Answering the following questions helps us prepare an offer for you faster:

  • What is the sample material?

  • What UL 94 flammability rating are you aiming for?

  • Do you have a recurring need for these or similar tests? If yes, how often?

Have questions or need help? Email us at or call our sales team.