ASTM-D2863 2006

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D2863-06 Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)

Published By	Publication Date	Number of Pages
ASTM	2006	14

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Categories: 83.080.01 - Plastics in general, ASTM

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Description

1.1 This fire-test-response standard describes a procedure for measuring the minimum concentration of oxygen, expressed as percent volume, that will just support flaming combustion in a flowing mixture of oxygen and nitrogen.

1.2 This test method provides three testing procedures. Procedure A involves top surface ignition, Procedure B involves propagating ignition, and Procedure C is a short procedure involving the comparison with a specified minimum value of the oxygen index.

1.3 Test specimens used for this test method are prepared into one of six types of specimens (see ).

1.4 This test method provides for testing materials that are structurally self-supporting in the form of vertical bars or sheet up to 10.5-mm thick. Such materials are solid, laminated or cellular materials characterized by an apparent density greater than 15 kg/m ³ .

1.5 This test method also provides for testing flexible sheet or film materials, while supported vertically.

1.6 This test method is also suitable, in some cases, for cellular materials having an apparent density of less than 15 kg/m ³ .

Note 1

Although this test method has been found applicable for testing some other materials, the precision of the test method has not been determined for these materials, or for specimen geometries and test conditions outside those recommended herein.

1.7 This test method 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.

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. Specific hazards statement are given in Section .

Note 2

This test method and ISO 4589-2 are technically equivalent when using the gas measurement and control device described in , with direct oxygen concentration measurement.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus TABLE 1 TABLE 2
3	TABLE 3
4	FIG. 1
5	Test Specimens FIG. 2 FIG. 3
6	Conditioning Calibration of Apparatus Hazards Test Procedure FIG. 4
8	Calculation
9	Report Precision and Bias TABLE 4
10	Keywords A1. CALIBRATION OF EQUIPMENT A1.1 A1.2 A1.3 A1.4
11	A2. CALCULATION OF OXYGEN CONCENTRATION A2.1
12	A3. PRECISION AND BIAS ASSESSMENT USING GAS CONTROL DEVICES WITHOUT DIRECT OXYGEN CONCENTRATION MEASUREMENT A3.1 A3.2 X1. TYPICAL TEST RESULTS SHEET TABLE A3.1

Additional information

Standard Title	D2863-06 Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
Published Code	ASTM
Publication Date	2006
Pages Count	14
ICS Codes	83.080.01 - Plastics in general

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ASTM-D2863 2006

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