ASTM G93-03e1

    Historical Standard: ASTM G93-03e1 Standard Practice for Cleaning Methods and Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched Environments

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    ASTM G93

    1. Scope

    1.1 This practice covers the selection of methods and apparatus for cleaning materials and equipment intended for service in oxygen-enriched environments. Contamination problems encountered in the use of enriched air, mixtures of oxygen with other gases, or any other oxidizing gas may be solved by the same cleaning procedures applicable to most metallic and nonmetallic materials and equipment. Cleaning examples for some specific materials, components, and equipment, and the cleaning methods for particular applications, are given in the appendices.

    1.2 This practice includes levels of cleanliness used for various applications and the methods used to obtain and verify these levels.

    1.3 This practice applies to chemical-, solvent-, and aqueous-based processes.

    1.4 This practice describes nonmandatory material for choosing the required levels of cleanliness for systems exposed to oxygen or oxygen-enriched atmospheres.

    1.5 This practice proposes a practical range of cleanliness levels that will satisfy most system needs, but it does not deal in quantitative detail with the many conditions that might demand greater cleanliness or that might allow greater contamination levels to exist. Furthermore, it does not propose specific ways to measure or monitor these levels from among the available methods.

    1.6 The values stated in both inch-pound and SI units are to be regarded separately as the standard unit. The values given in parentheses are for information only.

    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. Federal, state and local safety and disposal regulations concerning the particular hazardous materials, reagents, operations, and equipment being used should be reviewed by the user. The user is encouraged to obtain the Material Safety Data Sheet (MSDS) from the manufacturer for any material incorporated into a cleaning process. Specific cautions are given in Section .


    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

    A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

    D1193 Specification for Reagent Water

    E312 Practice for Description and Selection of Conditions for Photographing Specimens Using Analog (Film) Cameras and Digital Still Cameras (DSC)

    E1235 Test Method for Gravimetric Determination of Nonvolatile Residue (NVR) in Environmentally Controlled Areas for Spacecraft

    E2042 Practice for Cleaning and Maintaining Controlled Areas and Clean Rooms

    F312 Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters

    F331 Test Method for Nonvolatile Residue of Solvent Extract from Aerospace Components (Using Flash Evaporator)

    G63 Guide for Evaluating Nonmetallic Materials for Oxygen Service

    G88 Guide for Designing Systems for Oxygen Service

    G121 Practice for Preparation of Contaminated Test Coupons for the Evaluation of Cleaning Agents

    G122 Test Method for Evaluating the Effectiveness of Cleaning Agents

    G125 Test Method for Measuring Liquid and Solid Material Fire Limits in Gaseous Oxidants

    G127 Guide for the Selection of Cleaning Agents for Oxygen Systems

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

    G131 Practice for Cleaning of Materials and Components by Ultrasonic Techniques

    G136 Practice for Determination of Soluble Residual Contaminants in Materials by Ultrasonic Extraction

    G144 Test Method for Determination of Residual Contamination of Materials and Components by Total Carbon Analysis Using a High Temperature Combustion Analyzer

    CGA Documents

    CGAPamphletG-4.4 Industrial Practices for Gaseous Oxygen Transmission and Distribution Piping Systems

    SAE Document

    ARP598 The Determination of Particulate Contamination in Liquids by the Particle Count Method Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.


    UNSPSC Code

    UNSPSC Code 12141904(Oxygen O)


    DOI: 10.1520/G0093-03E01

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