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ASTM F2299/F2299M-03(2010)

(Test Method)

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

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

SIGNIFICANCE AND USE
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.
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.
This test method establishes a basis of efficiency comparison between medical face mask materials.
This test method does not establish a comprehensive characterization of the medical face mask material for a specific protective application.
This test method does not assess the overall effectiveness of medical face masks in preventing the inward leakage of harmful particles.
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.
This test method is not suitable for evaluating materials used in protective clothing for determining their effectiveness against particulate hazards.
In general, clothing design is a significant factor, which must be considered in addition to the penetration of penetration of particulates.
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.

General Information

Status
Historical
Publication Date
31-May-2010
ICS
11.120.20 - Wound dressings and compresses
Technical Committee
F23 - Personal Protective Clothing and Equipment
Drafting Committee
F23.40 - Biological
Current Stage
Ref Project

Relations

Replaces
ASTM F2299-03 - Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres
Effective Date
01-Jun-2010
Replaced By
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
Effective Date
01-Jun-2017
Referred By
ASTM F2302-22 - Standard Performance Specification for Labeling Protective Clothing Which Provides Resistance to Incidental Exposures to Heat or Open Flame
Effective Date
01-Jun-2010

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ASTM F2299/F2299M-03(2010) - Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex SpheresASTM F2299/F2299M-03(2010) - Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres
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ASTM F2299/F2299M-03(2010) - Standard Test Method for Determining the Initial Efficiency of Materials Used in Medical Face Masks to Penetration by Particulates Using Latex Spheres
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2299/F2299M − 03 (Reapproved 2010)
Standard Test Method for
Determining the Initial Efficiency of Materials Used in
Medical Face Masks to Penetration by Particulates Using
1
Latex Spheres
ThisstandardisissuedunderthefixeddesignationF2299/F2299M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3776Test Methods for Mass Per Unit Area (Weight) of
Fabric
1.1 This test method establishes procedures for measuring
E691Practice for Conducting an Interlaboratory Study to
the initial particle filtration efficiency of materials used in
Determine the Precision of a Test Method
medical facemasks using monodispersed aerosols.
F50Practice 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
F328Practice for Calibration of anAirborne Particle Coun-
comparing the particle count in the feed stream (upstream) to
ter Using Monodisperse Spherical Particles (Withdrawn
3
that in the filtrate (downstream).
2007)
F778Methods for Gas Flow ResistanceTesting 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
F1471Test Method for Air Cleaning Performance of a
system must be used independently of the other, without
combining values in any way. High-Efficiency Particulate Air Filter System
F1494Terminology Relating to Protective Clothing
1.4 The following precautionary caveat pertains only to the
F2053Guide for Documenting the Results of Airborne
test methods portion, Section 10, of this specification. This
Particle Penetration Testing of Protective Clothing Mate-
standard does not purport to address all of the safety concerns,
rials
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
3. Terminology
practices and determine the applicability of regulatory limita-
3.1 Definitions:
tions prior to use.
3.1.1 aerosol, n—a suspension of a liquid or solid particles
in a gas with the particles being in the colloidal size range.
2. Referenced Documents
3.1.1.1 Discussion—In this test method, aerosols include
2
2.1 ASTM Standards:
solid particles having a diameter of 0.1 to 5 µm suspended or
D1356Terminology Relating to Sampling and Analysis of
dispersed in an airflow at concentrations of less than 102
Atmospheres
3
particles/cm .
D1777Test Method for Thickness of Textile Materials
3.1.2 isokinetic sampling, n—aconditionwherethevelocity
D2905Practice for Statements on Number of Specimens for
3
of the airflow entering the sampling nozzle is the same as the
Textiles (Withdrawn 2008)
velocity of the airflow passing around the sampling nozzle.
3.1.3 monodispersion, n—scattering of discrete particles in
1
ThistestmethodisunderthejurisdictionofASTMCommitteeF23onPersonal
anairflowwherethesizeiscentralizedaboutaspecificparticle
ProtectiveClothingandEquipmentandisthedirectresponsibilityofSubcommittee
size.
F23.40 on Biological.
CurrenteditionapprovedJune1,2010.PublishedJuly2010.Originallyapproved 3.1.3.1 Discussion—In this test method, the monodispersed
in2003.Lastpreviouseditionapprovedin2003asF2299-03.DOI:10.1520/F2299
particle distribution has a mean diameter size of the aerosol in
_F2299M-03R10.
the 0.1 to 5 µm range, with a coefficient of variation of the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mean diameter of 610% or less, as certified by the manufac-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
turer.
the ASTM website.
3
3.2 Fordefinitionsofotherprotectiveclothing-relatedterms
The last approved version of this historical standard is referenced on
www.astm.org. used in this test method, refer to Terminology F1494.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2299/F2299M − 03 (2010)
4. Summary of Test Method 7. System Preparation and Control
4.1 Filtered and dried air is passed through an atomizer to 7.1 Totestintheaerosolparticlesizerangeof0.1to5.0µm,
produce an aerosol containing suspended latex spheres. itisnecessarytomaintainaverycleaninletairsupply.Achieve
4.1.1 This aerosol
...

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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.  
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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.  
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ASTM
ASTM D1751-23(Specification)
Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Asphalt Types)

SCOPE
1.1 This specification covers preformed expansion joint filler having relatively little extrusion and substantial recovery after release from compression.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
Note 1: Attention is called to Specifications D1752 and D994/D994M.  
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 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.

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