ASTM G74-01

    Standard Test Method for Ignition Sensitivity of Materials to Gaseous Fluid Impact

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    1. Scope

    1.1 This method describes a technique to determine the relative sensitivity of materials to dynamic pressure impacts by gases such as oxygen, air, or blends of gases containing oxygen.

    1.2 This method describes the test apparatus and test procedures that may be employed in the evaluation of materials for use in gases under dynamic pressure operating conditions up to gage pressures of 10 000 psi (69 MPa) at ambient temperature.

    1.3 This method is primarily a test for ranking of materials. This method is not necessarily valid for determination of the sensitivity of the materials in an "as-used" configuration since the material sensitivity may be altered because of changes in material configuration, usage, and environment. This method can be employed to provide batch-to-batch acceptance data. Acceptability of any material may be based on its performance at a particular test pressure, or test pressure may be varied to determine the reaction threshold of a material, as specified by the user.

    1.4 The criteria used for the acceptance, retest, and rejection of materials for any given application shall be determined by the user and are not fixed by this method.

    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. For specific precautions see Section 7.


    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

    D618 Practice for Conditioning Plastics for Testing

    D2463 Test Method for Drop Impact Resistance of Blow-Molded Thermoplastic Containers

    D3182 Practice for Rubber--Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets

    D3183 Practice for Rubber--Preparation of Pieces for Test Purposes from Products

    D4894 Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials

    G14 Test Method for Impact Resistance of Pipeline Coatings (Falling Weight Test)

    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

    G128 Guide for Control of Hazards and Risks in Oxygen Enriched Systems

    G175 Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Regulators Used for Medical and Emergency Applications

    Military Standards

    MIL-D-16791G Detergents, General Purpose (Liquid, Nonionic) (26 Jan 1990)

    MIL-O-27210E Amendment 1--Oxygen, Aviators Breathing, Liquid and Gas

    MIL-STD-1330D Standard Practice for precision Cleaning and Testing of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, and Hydrogen Systems

    MIL-STD-1622 Cleaning Shipboard Compressed Air Systems

    CGA Standards

    CGAV-9 Compressed Gas Association Standard for Compressed Gas Cylinder Valves

    ISO Standards

    ISO10297 Transportable gas cylinders--Cylinder valves--Specification and type testing

    ISO10524-1 Pressure regulators for use with medical gases--Part 1: Pressure regulators and pressure regulators with flow-metering devices

    ISO10524-2 Pressure regulators for use with medical gases--Part 2: Manifold and line pressure regulators

    ISO10524-3 Pressure regulators for use with medical gases--Part 3: Pressure regulators integrated with cylinder valves

    ISO14113 Gas welding equipment--Rubber and plastics hose and hose assemblies for use with industrial gases up to 450 bar (45 MPa)

    ISO15001 Anesthetic and Respiratory Equipment--Compatibility with Oxygen

    ISO23529 Rubber--General procedures for preparing and conditioning test pieces for physical test methods reference

    ISO291 Plastics--Standard Atmospheres for Conditioning and Testing

    IEST Standards

    IEST-STD-CC1246D Product Cleanliness Levels and Contamination Control Program, Clean Rooms, August 2005


    ICS Code

    ICS Number Code 13.220.40 (Ignitability and burning behaviour of materials and products); 13.230 (Explosion protection)

    UNSPSC Code

    UNSPSC Code 15111500(Gaseous fuels)


    DOI: 10.1520/G0074-01

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