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1.1 This is a fire-test-response standard.

1.2 This fire test method is applicable to electrical insulation materials used for wires or cables. The materials are tested as plastic specimens on their own or installed on the wires or cables.

1.3 The ignition source is a gas burner fueled by methane or natural gas.

1.4 Use the values stated in SI units in referee decisions; see IEEE/ASTM SI-10. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.5 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.

1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

5.1 This vertical flame test provides information regarding the flammability performance of electrical insulating materials.

5.2 This test method is used to assess the vertical flame test performance of electrical insulation materials used in wires or cables in Test Methods D2633 and D3032 (Test A), as well as in Specifications D2219 and D2220.

5.3 In this test method, the test specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. The results are therefore valid only for the fire-test exposure conditions described in this procedure.