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Significance and Use
5.1 The test results represent the afterflame and afterglow times, in seconds, for a material under the conditions of the test.
5.2 The afterflame and afterglow times and other burning phenomena will vary with thickness. Test data shall only be compared with data for material of comparable thickness.
5.3 The effect of material thickness, colors, additives, deterioration, and possible loss of volatile components is measurable.
5.4 The results serve as a reference for comparing the relative performance of materials and can be an aid in material selection.
5.5 In this procedure, the 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 will not always be possible by or from this test method to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire-test exposure conditions described in this test method.
1.1 This fire-test-response test methods describe small-scale laboratory procedures for determining the comparative burning characteristics of solid plastic materials that, due to specimen thinness and nonrigidity, distort, shrink, and/or are consumed up to holding clamp when tested using Test Method . A flame is applied to the base of specimens held in a vertical position and the extinguishing times are determined upon removal of the test flame.
1.2 The classification system described in is intended for quality assurance and the preselection of component materials for products.
1.3 This standard measures and describes 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.
Note 1: This standard is equivalent to ISO 9773, IEC 60695-11-10, and UL 94 (Section 11).
Note 2: For rate of burning of nonrigid solid plastics in a horizontal position, formerly Test Method B of this test method, see Test Method .
1.4 This test method is not intended to cover plastics when used as materials for building construction or finishing.
1.5 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.
1.6 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. For specific hazard statements, see .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position
D883 Terminology Relating to Plastics
D3801 Test Method for Measuring the Comparative Burning Characteristics of Solid Plastics in a Vertical Position
D5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic Materials
D5207 Practice for Confirmation of 20-mm (50-W) and 125-mm (500-W) Test Flames for Small-Scale Burning Tests on Plastic Materials
E176 Terminology of Fire Standards
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ISO StandardsISO 9773–98 Plastics--Determination of Burning Behaviour of Thin Flexible Vertical Specimens in Contact With a Small Flame Ignition Source Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
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ASTM D4804-14, Standard Test Method for Determining the Flammability Characteristics of Nonrigid Solid Plastics, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top