ASTM E1549 / E1549M - 13

    Standard Specification for ESD Controlled Garments Required in Cleanrooms and Controlled Environments for Spacecraft for Non-Hazardous and Hazardous Operations

    Active Standard ASTM E1549 / E1549M | Developed by Subcommittee: E21.05

    Book of Standards Volume: 15.03


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    ASTM E1549 / E1549M

    1. Scope

    1.1 This document specifies special items of clothing (cleanroom garments) designed to protect aerospace products from electrostatic discharge and from contaminants released by personnel and garments. Special clothing includes low linting coveralls, footwear, and head covers.

    1.2 The function of cleanroom garments is to contain the contaminants generated by people and to minimize contaminants from the garments.

    1.3 Two types of fabrics can be selected for the garments. Both types are inherently static-dissipative materials to prevent electrical discharges that can damage sensitive hardware or initiate explosions in the presence of flammable vapors. The material specified for “hazardous environments” is flame resistant and provides additional protection to the wearer. Selection of garment design and fabric should be based on the user's needs with respect to functional and environmental requirements.

    1.4 Additional, background information can be found in SD-TR-91-26 and IEST-RP-CC003.3.

    1.5 This standard is intended to be in compliance with the ASTM policy on Fire Standards.2 Flammability tests specified in this standard should be used to measure and describe the properties of fabrics in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fabrics under actual fire conditions. However, results of the tests may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of operations in controlled environment areas.

    1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.7 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

    D123 Terminology Relating to Textiles

    D204 Test Methods for Sewing Threads

    D737 Test Method for Air Permeability of Textile Fabrics

    D1683 Test Method for Failure in Sewn Seams of Woven Apparel Fabrics

    D1894 Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting

    D2257 Test Method for Extractable Matter in Textiles

    D5034 Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

    D6193 Practice for Stitches and Seams

    E96/E96M Test Methods for Water Vapor Transmission of Materials

    E176 Terminology of Fire Standards

    E535 Practice for Preparation of Fire-Test-Response Standards

    E1560 Test Method for Gravimetric Determination of Nonvolatile Residue From Cleanroom Wipers

    F51 Test Method for Sizing and Counting Particulate Contaminant In and On Clean Room Garments

    F739 Test Method for Permeation of Liquids and Gases through Protective Clothing Materials under Conditions of Continuous Contact

    F1506 Performance Specification for Flame Resistant and Arc Rated Textile Materials for Wearing Apparel for Use by Electrical Workers Exposed to Momentary Electric Arc and Related Thermal Hazards

    U.S. Federal Standards

    A-A50195 Thread, Aramid

    CFRTitle16Part1610 Standard for the Flammability of Clothing Textiles

    FED-STD-209E Airborne Particulate Cleanliness Classes in Cleanrooms and Clean Zones


    ICS Code

    ICS Number Code 13.340.10 (Protective clothing)

    UNSPSC Code

    UNSPSC Code 25150000(Spacecraft); 53100000(Clothing)


    DOI: 10.1520/E1549_E1549M

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