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    ASTM F2299 / F2299M - 03(2017)

    Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres

    Active Standard ASTM F2299 / F2299M | Developed by Subcommittee: F23.40

    Book of Standards Volume: 11.03

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    Significance and Use

    5.1 This test method measures the initial filtration efficiency of materials used in medical face masks by sampling representative volumes of the upstream and downstream latex aerosol concentrations in a controlled airflow chamber.

    5.2 This test method provides specific test techniques for both manufacturers and users to evaluate materials when exposed to aerosol particle sizes between 0.1 and 5.0 μm.

    5.2.1 This test method establishes a basis of efficiency comparison between medical face mask materials.

    5.2.2 This test method does not establish a comprehensive characterization of the medical face mask material for a specific protective application.

    5.3 This test method does not assess the overall effectiveness of medical face masks in preventing the inward leakage of harmful particles.

    5.3.1 The design of the medical face mask and the integrity of the seal of the medical face mask to the wearer's face are not evaluated in this test.

    5.4 This test method is not suitable for evaluating materials used in protective clothing for determining their effectiveness against particulate hazards.

    5.4.1 In general, clothing design is a significant factor which must be considered in addition to the penetration of particulates.

    1. Scope

    1.1 This test method establishes procedures for measuring the initial particle filtration efficiency of materials used in medical facemasks using monodispersed aerosols.

    1.1.1 This test method utilizes light scattering particle counting in the size range of 0.1 to 5.0 μm and airflow test velocities of 0.5 to 25 cm/s.

    1.2 The test procedure measures filtration efficiency by comparing the particle count in the feed stream (upstream) to that in the filtrate (downstream).

    1.3 The values stated in SI units or in other units shall be regarded separately as standard. The values stated in each system must be used independently of the other, without combining values in any way.

    1.4 The following precautionary caveat pertains only to the test methods portion, Section 10, of this specification. 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.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D1356 Terminology Relating to Sampling and Analysis of Atmospheres

    D1777 Test Method for Thickness of Textile Materials

    D2905 Practice for Statements on Number of Specimens for Textiles

    D3776/D3776M Test Methods for Mass Per Unit Area (Weight) of Fabric

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    F50 Practice for Continuous Sizing and Counting of Airborne Particles in Dust-Controlled Areas and Clean Rooms Using Instruments Capable of Detecting Single Sub-Micrometre and Larger Particles

    F328 Practice for Calibration of an Airborne Particle Counter Using Monodisperse Spherical Particles

    F778 Methods for Gas Flow Resistance Testing of Filtration Media

    F1471 Test Method for Air Cleaning Performance of a High-Efficiency Particulate Air Filter System

    F1494 Terminology Relating to Protective Clothing

    F2053 Guide for Documenting the Results of Airborne Particle Penetration Testing of Protective Clothing Materials

    ICS Code

    ICS Number Code 11.120.20 (Wound dressings. Compresses)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/F2299_F2299M-03R17

    Citation Format

    ASTM F2299 / F2299M-03(2017), Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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