ASTM F2299/F2299M-24

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.
Designation: F2299/F2299M − 24
Standard Test Method for
Determining the Initial Efficiency of Materials to Penetration
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by Particulates Using Latex Spheres
This standard is issued under the fixed designation F2299/F2299M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2905 Practice for Statements on Number of Specimens for
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Textiles (Withdrawn 2008)
1.1 This test method establishes procedures for measuring
D3776/D3776M Test Methods for Mass Per Unit Area
the initial particle filtration efficiency of materials using
(Weight) of Fabric
monodispersed aerosols.
F50 Practice for Continuous Sizing and Counting of Air-
1.1.1 This test method utilizes light-scattering particle
borne Particles in Dust-Controlled Areas and Clean
counting in the size range of 0.1 to 5.0 μm and airflow test
Rooms Using Instruments Capable of Detecting Single
velocities of 0.5 to 25 cm/s.
Sub-Micrometre and Larger Particles
1.2 The test procedure measures filtration efficiency by
F328 Practice for Calibration of an Airborne Particle Coun-
comparing the particle count in the feed stream (upstream) to
ter Using Monodisperse Spherical Particles (Withdrawn
that in the filtrate (downstream). 3
2007)
F778 Methods for Gas Flow Resistance Testing of Filtration
1.3 The values stated in SI units or in other units shall be
regarded separately as standard. The values stated in each Media
F1494 Terminology Relating to Protective Clothing
system must be used independently of the other, without
combining values in any way. F2053 Guide for Documenting the Results of Airborne
Particle Penetration Testing of Protective Clothing Mate-
1.4 The following precautionary caveat pertains only to the
rials
test methods portion, Section 10, of this specification. This
standard does not purport to address all of the safety concerns,
3. Terminology
if any, associated with its use. It is the responsibility of the user
3.1 Definitions:
of this standard to establish appropriate safety, health, and
3.1.1 aerosol, n—a suspension of a liquid or solid particles
environmental practices and determine the applicability of
in a gas with the particles being in the colloidal size range.
regulatory limitations prior to use.
3.1.1.1 Discussion—In this test method, aerosols include
1.5 This international standard was developed in accor-
solid particles having a diameter of 0.1 to 5 μm suspended or
dance with internationally recognized principles on standard-
dispersed in an airflow at concentrations of less than 102 par-
ization established in the Decision on Principles for the
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ticles ⁄cm .
Development of International Standards, Guides and Recom-
3.1.2 isokinetic sampling, n—a condition where the velocity
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. of the airflow entering the sampling nozzle is the same as the
velocity of the airflow passing around the sampling nozzle.
2. Referenced Documents
3.1.3 monodispersion, n—scattering of discrete particles in
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an airflow where the size is centralized about a specific particle
2.1 ASTM Standards:
size.
D1777 Test Method for Thickness of Textile Materials
3.1.3.1 Discussion—In this test method, the monodispersed
particle distribution has a mean diameter size of the aerosol in
the 0.1 to 5 μm range, with a coefficient of variation of the
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This test method is under the jurisdiction of ASTM Committee F23 on Personal
mean diameter of 610 % or less, as certified by the manufac-
Protective Clothing and Equipment and is the direct responsibility of Subcommittee
F23.40 on Biological.
turer.
Current edition approved Feb. 1, 2024. Published February 2024. Originally
3.2 For definitions of other protective clothing-related terms
approved in 2003. Last previous edition approved in 2017 as F2299/F2299M – 03
(2017). DOI: 10.1520/F2299_F2299M-24.
used in this test method, refer to Terminology F1494.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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F2299/F2299M − 24
4. Summary of Test Me
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