ASTM D2986-95a(1999)

Standard Practice for Evaluation of Air Assay Media by the Monodisperse DOP (Dioctyl Phthalate) Smoke Test (Withdrawn 2004)

SCOPE
1.1 The dioctyl phthalate (DOP) smoke test is a highly sensitive and reliable technique for measuring the fine particle arresting efficiency of an air or gas cleaning system or device. It is especially useful for evaluating the efficiency of depth filters, membrane filters, and other particle-collecting devices used in air assay work.  
1.2 The technique was developed by the U.S. Government during World War II.  Its validity for use in evaluation of air sampling media has been well demonstrated.  
1.3 Although a little latitude is permissible in the associated equipment and in the operation method, experience has shown the desirability of operating within established design parameters and recognized test procedures.  
1.4 This practice describes the present DOP test method, typical equipment, calibration procedures, and test particles. It is applicable for use with commercially available equipment.  
1.5 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. For specific safety precaution, see 6.1.
WITHDRAWN RATIONALE
The dioctyl phthalate (DOP) smoke test is a highly sensitive and reliable technique for measuring the fine particle arresting efficiency of an air or gas cleaning system or device. It is especially useful for evaluating the efficiency of depth filters, membrane filters, and other particle-collecting devices used in air assay work.
Formerly under the jurisdiction of Committee D22 on Sampling and Analysis of Atmospheres, this practice was withdrawn in December 2004. This practice is being withdrawn because the procedure is 34 years-old and the apparatus identified (the Optical Owl) is no longer available.

General Information

• Status: Withdrawn
• Publication Date: 09-Sep-1999
• Withdrawal Date: 14-Dec-2004
• ICS: 13.040.01 - Air quality in general
• Technical Committee: D22 - Air Quality
• Drafting Committee: D22.01 - Quality Control

Relations

• Referred By: ASTM D4096-17 - Standard Test Method for Determination of Total Suspended Particulate Matter in the Atmosphere (High–Volume Sampler Method)
• Effective Date: 10-Sep-1999
• Referred By: ASTM D3685/D3685M-13(2021) - Standard Test Methods for Sampling and Determination of Particulate Matter in Stack Gases
• Effective Date: 10-Sep-1999
• Referred By: ASTM E2515-11(2017) - Standard Test Method for Determination of Particulate Matter Emissions Collected by a Dilution Tunnel
• Effective Date: 10-Sep-1999
• Referred By: ASTM D6331-16 - Standard Test Method for Determination of Mass Concentration of Particulate Matter from Stationary Sources at Low Concentrations (Manual Gravimetric Method)
• Effective Date: 10-Sep-1999

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: D 2986 – 95a (Reapproved 1999)
Standard Practice for
Evaluation of Air Assay Media by the Monodisperse DOP
1
(Dioctyl Phthalate) Smoke Test
This standard is issued under the fixed designation D 2986; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 The dioctyl phthalate (DOP) smoke test is a highly 3.1 Definitions—For other definitions of terms used in this
sensitive and reliable technique for measuring the fine particle practice, refer to Terminology D 1356.
arresting efficiency of an air or gas cleaning system or device. 3.2 Other terms are defined as follows:
It is especially useful for evaluating the efficiency of depth 3.3 optical owl, n—an optical instrument for visual estima-
filters, membrane filters, and other particle-collecting devices tion of the particle diameter of the monodisperse aerosol by the
used in air assay work. angular dependence of light scattering, in accordance with the
1.2 The technique was developed by the U.S. Government Mie theory.
2
during World War II. Its validity for use in evaluation of air
3 4. Summary of Practice
sampling media has been well demonstrated.
4.1 Amonodispersed aerosol of 0.3-µm diameter is continu-
1.3 Although a little latitude is permissible in the associated
equipment and in the operation method, experience has shown ously generated by condensation of DOP vapor under con-
trolled conditions. By selective value arrangement, a metered
the desirability of operating within established design param-
4
eters and recognized test procedures. portion of this aerosol is drawn through a specimen mount
containing the item under test. Flow rate through the specimen
1.4 This practice describes the present DOP test method,
typical equipment, calibration procedures, and test particles. It is adjustable and the corresponding flow resistance is noted as
part of the test.
is applicable for use with commercially available equipment.
1.5 This standard does not purport to address all of the 4.2 Withaerosolgenerationstabilized(constantparticlesize
and concentration), aerosol concentration is measured up-
safety concerns, if any, associated with its use. It is the
stream and downstream of the specimen under test by use of a
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- linear forward light-scattering photometer.
4.3 Results are expressed as percent of DOP penetration at
bility of regulatory limitations prior to use. For specific safety
precaution, see 6.1. the flow rate used.
5. Apparatus
2. Referenced Documents
2.1 ASTM Standards: 5.1 Equipment for use with this technique consists of
several interoperational parts. These are indicated in proper
D 1356 Terminology Relating to Sampling and Analysis of
5
Atmospheres relative arrangement by the diagrammatic sketch, Fig. 1. In
Fig. 1, the letter designations refer to the same parts as
described in the immediately following subsections:
1
This practice is under the jurisdiction ofASTM Committee D-22 on Sampling
5.2 Air Supply Source (a)—This can be a blower as shown
and Analysis of Atmospheres and is the direct responsibility of Subcommittee
diagrammatically or a compressed air source with stepdown
D22.01 on Quality Control.
regulator. In any case, the air supply source must be clean, free
Current edition approved Sept. 10, 1995. Published February 1996. Originally
published as D 2986 – 71. Last previous edition D 2986 – 95.
of entrainment, and sufficient to provide full flow against the
2
Knudson, H. W., and White, Locke, Ens. USNR, “Development of Smoke
totalresistanceofaerosolgeneratorandaerosolconductorlines
Penetration Meters,” Naval Research Laboratory Report No. P-2642, P.B. No.
to the excess aerosol exhaust point.
119781, September 1945.
3
Smith, Walter, J., and Surprenant, N. F., “Properties of Various Filtering Media 5.3 DOPAerosol Generator (b)—The generator is designed
for Atmospheric Dust Sampling,” Proceedings, ASTM, Vol 53, 1953, pp.
to produce uniform size liquid droplet particles of 0.3-µm
1122–1135.
diameter at a concentration of about 100 6 20 µg/L of air.
4
Instruction Manual—Penetrometer, Filter Testing, DOP, Q127 136-300-138B,
Further description of the generator is given in 8.3.
Edgewood Arsenal, MD, July 1963.
5
Annual Book of ASTM Standards, Vol 11.03.
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D 2986 – 95a (1999)
FIG. 1 Simplified Diagram Showing Relation of P
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