Significance and Use

This test method will allow comparisons of the burning characteristics of various metallic materials. The burning characteristics that can be evaluated include ( 1 ) burn and no-burn pressure, ( 2 ) burn and no-burn temperature, ( 3 ) regression rate of the melting interface, and ( 4 ) visual evaluation of the burning process of the test sample.

1. Scope

1.1 This test method covers test apparatus and techniques to determine the minimum test gas pressure and sample temperature that supports self-sustained burning and the regression rate of the melting surface of a standardized sample of a metallic material that has been ignited using a promoter.

1.2 The data obtained from this test method are dependent on the precise test sample configuration and provide a basis for comparing the burning characteristics of metallic materials. No criteria are implied for relating these data for the suitability of a material's use in any actual system.

1.3 Requirements for apparatus suitable for this test method are given, as well as an example. The example is not required to be used.

1.4 This test method is for gaseous oxygen or any mixture of oxygen with inert diluents that will support burning, at any pressure or temperature within the capabilities of the apparatus used.

1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

G63 Guide for Evaluating Nonmetallic Materials for Oxygen Service

G88 Guide for Designing Systems for Oxygen Service

G93 Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments

G94 Guide for Evaluating Metals for Oxygen Service

Keywords

burning; burning rate; consumption rate; highest no-burn pressure; highest no-burn temperature; high-pressure; igniter; lowest burn pressure; melting rate; metal burning; metal combustion; metallic materials; metals ignition; oxygen; oxygen-enriched; promoted combustion; promoted ignition; promoter; regression rate of the melting interface lowest burn temperature; threshold pressure; Apparent burn rate; Average regression rate; Combustion; Heat of combustion; High-pressure testing; Igniter; Metals and metallic materials; Metals ignition; Minimum test-gas pressure; Oxygen-enriched systems/environments; Promoter/promoted combustion/ignition; Self-sustained combustion; Threshold pressure;

ICS Code

ICS Number Code 77.040.30 (Chemical analysis of metals)

DOI: 10.1520/G0124-10

ASTM International is a member of CrossRef.

ASTM G124