ASTM D4532-97(2003)

Standard Test Method for Respirable Dust in Workplace Atmospheres

SIGNIFICANCE AND USE
This test method covers the determination of respirable dust in workplace atmospheres.
The limitations on the test method are a minimum weight of 0.2 mg of dust on the filter, and a maximum loading of 0.3 mg/cm2 on the filter. The test method may be used at higher loadings if the flow rate can be maintained constant.
SCOPE
1.1 This test method is useful for the determination of respirable dust (see Terminology D 1356) in a range from 0.5 to 10 mg/m  in workplace atmospheres.
1.2  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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Apr-2003
• ICS: 13.040.99 - Other standards related to air quality
• Technical Committee: D22 - Air Quality
• Drafting Committee: D22.04 - Workplace Air Quality

Relations

• Replaces: ASTM D4532-97 - Standard Test Method for Respirable Dust in Workplace Atmospheres
• Effective Date: 10-Apr-2003
• Replaced By: ASTM D4532-10 - Standard Test Method for Respirable Dust in Workplace Atmospheres Using Cyclone Samplers
• Effective Date: 01-Apr-2010
• Referred By: ASTM E2625-19 - Standard Practice for Controlling Occupational Exposure to Respirable Crystalline Silica for Construction and Demolition Activities
• Effective Date: 10-Apr-2003
• Referred By: ASTM D5337-23 - Standard Practice for Setting and Verifying the Flow Rate of Personal Sampling Pumps
• Effective Date: 10-Apr-2003
• Referred By: ASTM E1132-21 - Standard Practice for Health Requirements Relating to Occupational Exposure to Respirable Crystalline Silica
• Effective Date: 10-Apr-2003
• Referred By: ASTM D6062-19 - Standard Guide for Personal Samplers of Health-Related Aerosol Fractions
• Effective Date: 10-Apr-2003
• Referred By: ASTM D6552-06(2021) - Standard Practice for Controlling and Characterizing Errors in Weighing Collected Aerosols
• Effective Date: 10-Apr-2003
• Referred By: ASTM D8208-19 - Standard Practice for Collection of Non-Fibrous Nanoparticles Using a Nanoparticle Respiratory Deposition (NRD) Sampler
• Effective Date: 10-Apr-2003
• Referred By: ASTM D6061-01(2018)e1 - Standard Practice for Evaluating the Performance of Respirable Aerosol Samplers
• Effective Date: 10-Apr-2003
• Referred By: ASTM D4844-16 - Standard Guide for Air Monitoring at Waste Management Facilities for Worker Protection
• Effective Date: 10-Apr-2003
• Referred By: ASTM D8344-20 - Standard Practice for Ammonium Bifluoride and Nitric Acid Digestion of Airborne Dust and Dust-Wipe Samples for the Determination of Metals and Metalloids
• Effective Date: 10-Apr-2003
• Referred By: ASTM D7049-17 - Standard Test Method for Metalworking Fluid Aerosol in Workplace Atmospheres
• Effective Date: 10-Apr-2003
• Referred By: ASTM D7948-20 - Standard Test Method for Measurement of Respirable Crystalline Silica in Workplace Air by Infrared Spectrometry
• Effective Date: 10-Apr-2003
• Referred By: ASTM D8358-21 - Standard Guide for Assessment and Inclusion of Wall Deposits in the Analysis of Single-Stage Samplers for Airborne Particulate Matter
• Effective Date: 10-Apr-2003
• Referred By: ASTM E1747-95(2019) - Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications
• Effective Date: 10-Apr-2003

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:D4532–97 (Reapproved 2003)
Standard Test Method for
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Respirable Dust in Workplace Atmospheres
This standard is issued under the fixed designation D4532; 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 5. Significance and Use
1.1 This test method is useful for the determination of 5.1 This test method covers the determination of respirable
respirabledust(seeTerminologyD1356)inarangefrom0.5to dust in workplace atmospheres.
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10 mg/m in workplace atmospheres. 5.2 The limitations on the test method are a minimum
1.2 This standard does not purport to address all of the weight of 0.2 mg of dust on the filter, and a maximum loading
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safety concerns, if any, associated with its use. It is the of 0.3 mg/cm on the filter. The test method may be used at
responsibility of the user of this standard to consult and higher loadings if the flow rate can be maintained constant.
establish appropriate safety and health practices and deter-
6. Apparatus
mine the applicability of regulatory limitations prior to use.
6.1 The sampling unit consists of a pump and a sampling
2. Referenced Documents
head. The sampling head consists of a 10-mm cyclone and a
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2.1 ASTM Standards: filter assembly.
D1356 Terminology Relating to Sampling and Analysis of 6.1.1 Pump—A personal sampling pump with a flow rate
Atmospheres accurate to 65 %. Pump pulsation not to exceed 620 % of the
D3195 Practice for Rotameter Calibration meanflow.Thepumpmustbecapableofmaintainingthemean
D5337 Practice for Flow Rate Calibration of Personal flow constant to within 65 % during the sampling period.
Sampling Pumps Calibrate the sampling pump using Practice D5337.
D6062M DESIG ATTRIBUTE D6062M DIDN’T 6.1.2 Sampling Head—The sampling head consists of a
MATCH, MATCHED WITH D6062 Guide for Personal 10-mm cyclone, a filter, a filter-support pad, and a filter holder
Samplers of Health-Related Aerosol Fractions with suitable caps (see Fig. 1).
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E1 Specification for ASTM Liquid-in-Glass Thermometers 6.1.2.1 The cyclone must be shown to be unbiased relative
to the appropriate respirable dust criterion and the dust size
3. Terminology
distribution being sampled (3, 4, 5, 6). Based on the cyclone
3.1 Definitions of Terms Specific to This Standard: penetration curve for non-pulsating flow measured with a
3.1.1 respirable fraction of the dust—that mass which
monodisperse aerosol, the bias in the test method is shown in
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passes through a cyclone at the stated conditions (1, 2). Fig. 2 for sampling rates appropriate for individual cyclones.
(7).
4. Summary of Test Method
6.1.2.2 Cyclone samples collected with pulsating flow have
4.1 Air is accurately drawn for a measured period of time
been shown to yield a negative bias as large as 22 % compared
through a 10-mm cyclone followed by a tared filter. The
to samples collected under steady flow (8).
respirabledustconcentrationiscalculatedfromtheweightgain
6.1.2.3 Electrostatic charge on the dust and a non-
of the filter and the total volume of air sampled.
conductive sampler can cause bias as large as 50 %. (9).
6.1.3 The filter shall be non-hygroscopic and a collection
efficiency greater than 95 % for the dust cloud of interest. The
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filter and its filter support shall be 37 mm in diameter.
This test method is under the jurisdiction of ASTM Committee D22 on Air
Quality and is the direct responsibility of Subcommittee D22.04 on Workplace
NOTE 1—As an example, most glass fiber and membrane filters with
Atmospheres.
nominal pore size of 5 µm will nearly always fulfill this requirement (10).
Current edition approved April 10, 2003. Published June 2003. Originally
PVC is recommended for gravimetric analysis. The equilibrated filter is
approved in 1985. Last previous edition approved in 1997 as D4532 – 97. DOI:
10.1520/D4532-97R03.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM The sole source of the 10-mm cyclones known to the committee at this time is
Standards volume information, refer to the standard’s Document Summary page on Dorr-Oliver, Inc., Milford, CT 06460. If you are aware of alternative suppliers,
the ASTM website. pleaseprovidethisinformationtoASTMHeadquarters.Yourcommentswillreceive
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The boldface numbers in parentheses refer to the list of references at the end of careful consideration at a meeting of the responsible technical committee, which
this test method. you may attend.
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