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Significance and Use
5.1 The flame height and color (indicative of air-to-gas ratio) for a test flame have traditionally been specified in the individual test method. The energy content of the flame has also been addressed by reference to a specific supply gas. It has been determined that the supply-gas back pressure and flow rate can be varied without affecting the height and color of the flame. However, the energy content of the flame is affected. This practice provides the back pressure and flow rate of the supply gas for a 20-mm (50–W) and a 125-mm (500–W) test flame, and a procedure for confirming the heat-evolution profile of the test flame.
5.2 Information is provided for test flames using methane, propane, or butane. Using this information, these supply gases can be used interchangeably with a standardized burner to produce essentially the same test flame.
1.1 This practice covers the confirmation of test flames for small-scale burning tests on plastic materials using the laboratory burner described in Specification D5025. Back pressures and flow rates for methane, propane, and butane supply gases are given for specific test flames. This practice describes a procedure to confirm the heat evolution of the test flame.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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.
1.4 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D883 Terminology Relating to Plastics
D3195 Practice for Rotameter Calibration
D5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic Materials
E176 Terminology of Fire Standards
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
E608 Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
IEC StandardsIEC/TS 60695-11-3 Ed. 1: Fire Hazard Testing-Part 11: Test Flames-Section 3: 500 W Flames: Apparatus and Confirmational Test Methods IEC/TS 60695-11-4 Ed. 2: Fire Hazard Testing-Part 11: Test Flames-Section 4: 50 W Flame: Apparatus and Confirmational Test Methods
ICS Number Code 83.080.01 (Plastics in general); 83.140.01 (Rubber and plastic products in general)
ASTM D5207-14, Standard Practice for Confirmation of 20–mm (50–W) and 125–mm (500–W) Test Flames for Small-Scale Burning Tests on Plastic Materials, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top