ASTM D2863: Standard Test Method for Measuring the Minimum Oxygen Concentration
ASTM D2863: Standard Test Method for Measuring the Minimum Oxygen Concentration
ASTM D2863:Standard Test Method for Measuring the Minimum Oxygen Concentration - Test Standard：
ASTM D2863:Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
ASTM D2863:Standard Test Method for Measuring the Minimum Oxygen Concentration - Test method：
A small test specimen is supported vertically in a mixture of oxygen and nitrogen flowing upwards through a transparent chimney. The upper end of the specimen is ignited and the subsequent burning behavior of the specimen is observed to compare the period for which burning continues， or the length of specimen burnt， with specified limits for each burning. By testing a series of specimens in different oxygen concentrations，the minimum oxygen concentration is determined.
ASTM D2863:Standard Test Method for Measuring the Minimum Oxygen Concentration -Sample required：
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Test Specimen Type
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Dimensions
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Material Form
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Length/mm
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Width/mm
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Thickness/mm
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Ⅰ
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80-150
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10±0.5
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4±0.5
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for molding materials
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Ⅱ
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80-150
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10±0.5
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4±0.5
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For cellular materials
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Ⅲ
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80-150
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10±0.5
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≤10.5
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for sheet materials
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Ⅳ
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70-150
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6.5±0.5
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3±0.5
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alternative size for self-supporting molding or sheet materials
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Ⅴ
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140
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52±0.5
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≤10.5
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for flexible film or sheet
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Ⅵ
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140-200
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20
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0.02-0.10
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For thin film; limited to film that can be rolled
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ASTM D2863:Standard Test Method for Measuring the Minimum Oxygen Concentration -- Relative Standard：
- ASTM D618： Practice for Conditioning, Plastics and Electrical Insulating Materials for Testing
- ASTM D1071 ：Test Methods for Volumetric Measurement of Gaseous Fuel Samples
- ASTM D1622 ：Test Method for Apparent Density of Rigid Cellular Plastics
- ASTM D2444： Test Method for Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight)
- ASTM D4802： Specification for Poly(Methyl Methacrylate) Acrylic Plastic Sheet
- ASTM E691 ：Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method7
- ISO 4589-2： Plastics—Determination of Flammability by Oxygen Index—Part 2, Ambient Temperatures8
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