1.1 These requirements cover tests for flammability of polymeric materials used for parts in devices and
appliances. They are intended to serve as a preliminary indication of their acceptability with respect to
flammability for a particular application.
1.1 revised June 2, 2006
1.2 The methods described in this Standard involve standard size specimens and are intended to be used
solely to measure and describe the flammability properties of materials, used in devices and appliances,
in response to a small open flame or radiant heat source under controlled laboratory conditions.
1.2 revised June 2, 2006
1.2.1 The tests in the Standard for Tests for Flammability of Small Polymeric Component Materials should
be used to evaluate small components which contain materials that can not be fabricated into
standardized specimens in the minimum use thickness and subjected to applicable preselection tests in
UL 94. Test procedures in UL 1694 are applicable to small components with an overall volume of less than
2500 mm3(0.15 in3). UL 1694 is generally not applicable to small components with an overall volume
greater than 2500 mm3(0.15 in3).
1.2.1 added June 2, 2006
1.3 The final acceptance of the material is dependent upon its use in complete equipment that conforms
with the standards applicable to such equipment. The flammability classification required of a material is
dependent upon the equipment or device involved and the particular use of the material. The performance
level of a material determined by these methods shall not be assumed to correlate with its performance
in end-use application. The actual response to heat and flame of materials depends upon the size and
form, and also on the end-use of the product using the material. Assessment of other important
characteristics in the end-use application includes, but is not limited to, factors such as ease of ignition,
burning rate, flame spread, fuel contribution, intensity of burning, and products of combustion.
1.3 revised June 2, 2006
1.4 If found to be appropriate, the requirements are applied to other nonmetallic materials.
1.4 revised June 10, 1997
1.5 These tests, with the exception of the Radiant Panel Test in Section 10, are not applicable to the
evaluation of parts where the thickness exceeds 13.0 mm or where the surface area exceeds 1 m2. These
requirements do not cover polymeric materials when used for building construction, finishing, or contents
such as wall and floor coverings, furnishings, decorative objects and so forth. In addition, the fire
resistance (in terms of an hourly rating), flame spread, smoke characterization, and heat release rate is
not evaluated. Other fire tests exist and shall be used to evaluate the flammability of materials in the
intended end-use-product configuration.
1.5 revised June 2, 2006
UL 94-2009 history
2024UL 94-2023 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
2018UL 94 BULLETIN-2018 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: February 19@ 2018)
2017UL 94 BULLETIN-2017 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: December 29@ 2017)
2016UL 94 BULLETIN-2016 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: December 26@ 2016)
2015UL 94 BULLETIN-2015 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: October 14@ 2015)
2014UL 94 BULLETIN-2014 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: January 5@ 2015)
2013UL 94 BULLETIN-2013 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: February 3@ 2014)
2013UL 94-2013 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances
2012UL 94 BULLETIN-2012 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: October 29@ 2012)
2011UL 94 BULLETIN-2011 UL Standard for Safety Test for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: July 06@ 2011)
2010UL 94 BULLETIN-2010 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: March 01@ 2010)
2009UL 94 BULLETIN-2009 UL Standard for Safety Test for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: March 30@ 2009)
2009UL 94-2009 Test for flammability of plastic materials for parts in devices and appliances
2008UL 94 BULLETIN-2008 UL Standard for Safety Test for Flammability of Plastic Materials for Parts in Devices and Appliances (COMMENTS DUE: January 26@ 2008)
2000UL 94 BULLETINS-2000 UL Standard for Safety Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (08/15/2000 (26p); 06/30/2000 (23p); 04/17/2000 (34p))
1996UL 94-1996 Test for flammability of plastic materials for parts in devices and appliances
1991UL 94-1991 Test for flammability of plastic materials for parts in devices and appliances