1. Scope 1.1 This fire-test-response standard covers a small-scale laboratory procedure for determining comparative burning characteristics of solid-plastic material, using a 20-mm flame applied to the base of specimens held in a vertical position. Note 1-This test method, Clause 9 of IEC 707, and Method B of ISO 1210-1991 are technically equivalent. Note 2-For additional information on materials that burn up to the holding clamp by this test, see Test Method D635. For tests of flexible plastics in the form of thin sheets and film, see Test Method D4804. For additional information on comparative burning characteristics and resistance to burn-through, see Test Method D5048. Note 3-See Method D3713 which, unless otherwise specified, uses the same specimens for determining the comparative resistance of solid plastics to ignition by a small flame. 1.2 This test method was developed for polymeric materials used for parts in devices and appliances. The results are intended to serve as a preliminary indication of their acceptability with respect to flammability for a particular application. The final acceptance of the material is dependent upon its use in complete equipment that conforms with the standards applicable to such equipment. 1.3 The classification system described in the Appendix is intended for quality assurance and the preselection of component materials for products. 1.4 The test method may be applied to other nonmetallic materials if found to be appropriate. 1.5 The test method is not intended to cover plastics when used as materials for building construction or finishing. 1.6 This standard should be used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire-hazard or fire-risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire-hazard assessment or a fire-risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard or fire risk of a particular end use. 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 and health practices and determine the applicability of regulatory limitations prior to use. See 10.1.1 for a specific hazard statement.