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ASTM D 2863 : 2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

09-01-2009

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 Table 1).

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/m3.

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/m3.

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.

1.8 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 10.

1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.

Note 2—This test method and ISO 4589-2 are technically equivalent when using the gas measurement and control device described in 6.3.1, with direct oxygen concentration measurement.

TABLE 1 Test Specimen Dimensions

Test Specimen TypeADimensionsMaterial Form
Length,
mm
Width,
mm
Thickness, mm
I80 to 15010 ± 0.54 ± 0.25for molding materials
II80 to 15010 ± 0.510 ± 0.5for cellular materials
IIIB80 to 15010 ± 0.5 10.5for sheet materials
IVC70 to 1506.5 ± 0.53 ± 0.25alternative size for
self-supporting molding
or sheet materials
VB140 ± 552 ± 0.510.5for flexible film or sheet
VIBD140 to 200200.02 to 0.10for thin film; limited to film
that can be rolled by the
wire specified in 6.7

A Test specimens of Types I, II, III, and IV are suitable for materials that are self-supporting at these dimensions. Test specimens of Form V and VI are suitable for materials that require support during testing. Test specimens of Form VI are suitable for film materials that can be rolled into a self-supporting specimen by the procedure in 7.4.

B Compare results obtained using Type III, V, and VI test specimens only to those obtained using specimens of the same form and thickness. It is assumed that the amount of variation in thickness for such materials will be controlled by other standards.

C The Type IV (ASTM) specimen will eventually be discontinued in favor of the Type 1 (ISO) specimen.

D The test specimen of Type VI is suitable for thin film that is self-supporting when it is rolled (see 7.4). Dimensions in the table are of the specimen size from which the rolled form is made. If the film is very thin, it is possible that proper results will only be obtained if two or more layers are combined in the preparation of the roll to obtain proper results.

Committee
D 20
DocumentType
Test Method
Pages
14
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 3575 : 2014 Standard Test Methods for Flexible Cellular Materials Made From Olefin Polymers
ASTM G 114 : 2014 Standard Practices for Evaluating the Age Resistance of Polymeric Materials Used in Oxygen Service
ASTM D 3013 : 2013 Standard Specification for Epoxy Molding Compounds
ASTM D 8033 : 2016 Standard Classification System for Poly(Ether Ether Ketone) (PEEK) Molding and Extrusion Materials
ASTM G 128/G128M : 2015 Standard Guide for Control of Hazards and Risks in Oxygen Enriched Systems
ASTM D 1636 : 2013 Standard Specification for Allyl Molding Compounds
ASTM D 4000 : 2016 Standard Classification System for Specifying Plastic Materials
ASTM D 3275 : 2018 Standard Classification System for E-CTFE-Fluoroplastic Molding, Extrusion, and Coating Materials
ASTM C 1594 : 2011 : R2017 Standard Specification for Polyimide Rigid Cellular Thermal Insulation
ASTM G 63 : 2015 Standard Guide for Evaluating Nonmetallic Materials for Oxygen Service
ASTM G 127 : 2015 Standard Guide for the Selection of Cleaning Agents for Oxygen-Enriched Systems
ASTM D 3664 : 2016 Standard Specification for Biaxially Oriented Polymeric Resin Film for Capacitors in Electrical Equipment (Withdrawn 2022)
ASTM D 4649 : 2003 : R2016 Standard Guide for Selection and Use of Stretch Wrap Films
ASTM C 578 : 2019 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
ASTM G 125 : 2000 : R2015 Standard Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants
ASTM C 1410 : 2017 Standard Specification for Cellular Melamine Thermal and Sound-Absorbing Insulation
ASTM F 1870 : 2016 Standard Guide for Selection of Fire Test Methods for the Assessment of Upholstered Furnishings in Detention and Correctional Facilities
ASTM D 5575 : 2018 Standard Classification System for Copolymers of Vinylidene Fluoride (VDF) with Other Fluorinated Monomers
ASTM D 5205 : 2016 Standard Classification System and Basis for Specification for Polyetherimide (PEI) Materials
ASTM G 126 : 2016 Standard Terminology Relating to the Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres
ASTM D 6817/D6817M : 2017 Standard Specification for Rigid Cellular Polystyrene Geofoam
ASTM G 94 : 2005 : R2014 Standard Guide for Evaluating Metals for Oxygen Service
ASTM D 4819 : 2013 Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics

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