ASTM D6494-99(2015)

Standard Test Method for Determination of Asphalt Fume Particulate Matter in Workplace Atmospheres as Benzene Soluble Fraction

SIGNIFICANCE AND USE
5.1 Asphalt is a material used in the construction of roads and as a roofing material and sealant.  
5.2 This test method provides a means of evaluating exposure to asphalt fume in the working environment at the presently recommended exposure guidelines.  
5.2.1 The threshold limit value (TLV) for asphalt (petroleum) fumes is 5 mg/m3  8-h TWA, (1998 Threshold Limit Values and Biological Exposure Indices, ACGIH5).  
5.3 This procedure has been adapted from NIOSH Method 5023 (withdrawn prior to 4th edition (1994) and replaced in 1998 with NIOSH Method 5042) and OSHA Method 58 to reduce the level of background contamination providing better reproducibility.
SCOPE
1.1 This test method covers the determination of asphalt fume particulate matter (as benzene soluble fraction) and total particulate matter weight in workplace atmospheres using a polytetrafluoroethylene (PTFE) filter methodology.  
1.2 This procedure has been adapted from NIOSH Method 5023 (withdrawn prior to 4th edition (1994) and replaced in 1998 with NIOSH Method 5042) and OSHA Method 58 to reduce the level of background contamination providing better reproducibility.  
1.3 This procedure is compatible with high flow rate personal sampling equipment–0.5 to 2.0 L/min. It can be used for personal or area monitoring.  
1.4 The sampling method develops a time-weighted average (TWA) sample and can be used to determine short-term exposure limit (STEL).  
1.5 The applicable concentration range for the TWA sample is from 0.2 to 2.0 mg/m3.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 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 more specific precautionary statements, see Section 9.

General Information

• Status: Historical
• Publication Date: 30-Sep-2015
• ICS: 13.040.30 - Workplace atmospheres
• Technical Committee: D22 - Air Quality
• Drafting Committee: D22.04 - Workplace Air Quality

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6494 − 99 (Reapproved 2015)
Standard Test Method for
Determination of Asphalt Fume Particulate Matter in
1
Workplace Atmospheres as Benzene Soluble Fraction
This standard is issued under the fixed designation D6494; 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 D1356 Terminology Relating to Sampling and Analysis of
Atmospheres
1.1 This test method covers the determination of asphalt
2.2 Occupational Safety and HealthAdministration (OSHA)
fume particulate matter (as benzene soluble fraction) and total
3
Methods:
particulate matter weight in workplace atmospheres using a
OSHA Method 58 Coal Tar Pitch Volatiles
polytetrafluoroethylene (PTFE) filter methodology.
2.3 National Institute for Occupational Safety and Health
1.2 This procedure has been adapted from NIOSH Method 4
(NIOSH) Manual of Analytical Methods:
5023 (withdrawn prior to 4th edition (1994) and replaced in
NIOSH Method 5023 Coal Tar Pitch Volatiles
1998 with NIOSH Method 5042) and OSHA Method 58 to
NIOSH Method 5042 Benzene —Soluble Fraction andTotal
reduce the level of background contamination providing better
Particulate (Asphalt Fume)
reproducibility.
3. Terminology
1.3 This procedure is compatible with high flow rate per-
sonal sampling equipment–0.5 to 2.0 L/min. It can be used for 3.1 Definitions—For definitions of terms relating to this test
personal or area monitoring. method, refer to Terminology D1356.
3.1.1 asphalt fume particulate matter—particulate matter
1.4 Thesamplingmethoddevelopsatime-weightedaverage
generated during the processing of hot asphalt.
(TWA) sample and can be used to determine short-term
exposure limit (STEL).
4. Summary of Test Method
1.5 The applicable concentration range for the TWAsample
4.1 A known volume of sample air is passed through a
3
is from 0.2 to 2.0 mg/m .
PTFE filter.Asphalt fumes are removed from the air stream by
1.6 The values stated in SI units are to be regarded as deposition on the filter.
standard. No other units of measurement are included in this
4.2 The asphalt fume is extracted with a known volume of
standard.
benzene. The benzene extract is then evaporated to dryness in
1.7 This standard does not purport to address all of the
a vacuum oven. The benzene soluble fraction (BSF) is then
safety concerns, if any, associated with its use. It is the
determined gravimetrically.
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For more specific
5.1 Asphalt is a material used in the construction of roads
precautionary statements, see Section 9.
and as a roofing material and sealant.
5.2 This test method provides a means of evaluating expo-
2. Referenced Documents
sure to asphalt fume in the working environment at the
2
2.1 ASTM Standards:
presently recommended exposure guidelines.
5.2.1 The threshold limit value (TLV) for asphalt (petro-
3
leum) fumes is 5 mg/m 8-h TWA, (1998 Threshold Limit
5
1
This test method is under the jurisdiction of ASTM Committee D22 on Air Values and Biological Exposure Indices, ACGIH ).
Quality and is the direct responsibility of Committee D22.04 on Workplace Air
Quality.
3
Current edition approved Oct. 1, 2015. Published October 2015. Originally Available from Occupational Safety and Health Administration (OSHA), 200
approved in 1999. Last previous edition approved in 2010 as D6494 – 99 (2010). Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
4
DOI: 10.1520/D6494-99R15. AvailablefromNationalInstituteforOccupationalSafetyandHealth(NIOSH),
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Cincinnati, OH. http://www.cdc.gov
5
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from American Conference of Governmental Industrial Hygienists,
Standards volume information, refer to the standard’s Document Summary page on Inc. (ACGIH), 1330 Kemper Meadow Dr., Cincinnati, OH 45240, http://
the ASTM website. www.acgih.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6494 − 99 (2015)
5.3 This procedure has been adapted from NIOSH Method 8. Reagents
5023 (withdrawn prior to 4th edition (1994) and replaced in
8.1 Benzene—HPLC grade or equivalent with evaporation
1998 with NIOSH Method 5042) and OSHA Method 58 to
residue of <0.0005 %.
reduce the level of background contamination providing better
NOTE 3—Benzene evap
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6494 − 99 (Reapproved 2010) D6494 − 99 (Reapproved 2015)
Standard Test Method for
Determination of Asphalt Fume Particulate Matter in
1
Workplace Atmospheres as Benzene Soluble Fraction
This standard is issued under the fixed designation D6494; 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
1.1 This test method covers the determination of asphalt fume particulate matter (as benzene soluble fraction) and total
particulate matter weight in workplace atmospheres using a polytetrafluoroethylene (PTFE) filter methodology.
1.2 This procedure has been adapted from NIOSH Method 5023 (withdrawn prior to 4th edition (1994) and replaced in 1998
with NIOSH Method 5042) and OSHA Method 58 to reduce the level of background contamination providing better
reproducibility.
1.3 This procedure is compatible with high flow rate personal sampling equipment–0.5 to 2.0 L/min. It can be used for personal
or area monitoring.
1.4 The sampling method develops a time-weighted average (TWA) sample and can be used to determine short-term exposure
limit (STEL).
3
1.5 The applicable concentration range for the TWA sample is from 0.2 to 2.0 mg/m .
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 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 more specific precautionary statements, see Section 9.
2. Referenced Documents
2
2.1 ASTM Standards:
D1356 Terminology Relating to Sampling and Analysis of Atmospheres
3
2.2 Occupational Safety and Health Administration (OSHA) MethodsMethods:
OSHA Method 58 Coal Tar Pitch Volatiles
4
2.3 National Institute for Occupational Safety and Health (NIOSH) Manual of Analytical MethodsMethods:
NIOSH Method 5023 Coal Tar Pitch Volatiles
NIOSH Method 5042 Benzene —Soluble Fraction and Total Particulate (Asphalt Fume)
3. Terminology
3.1 Definitions:Definitions—For definitions of terms relating to this test method, refer to Terminology D1356.
3.1.1 asphalt fume particulate matter—particulate matter generated during the processing of hot asphalt.
3.1.2 For definitions of terms relating to this test method, refer to Terminology D1356.
4. Summary of Test Method
4.1 A known volume of sample air is passed through a PTFE filter. Asphalt fumes are removed from the air stream by deposition
on the filter.
1
This test method is under the jurisdiction of ASTM Committee D22 on Air Quality and is the direct responsibility of Committee D22.04 on Workplace Air Quality.
Current edition approved April 1, 2010Oct. 1, 2015. Published June 2010October 2015. Originally approved in 1999. Last previous edition approved in 20042010 as
ε1
D6494 - 99 (2004)D6494 – 99 (2010). . DOI: 10.1520/D6494-99R10.10.1520/D6494-99R15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Occupational Safety and Health Administration (OSHA), 200 Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
4
Available from National Institute for Occupational Safety and Health (NIOSH), Cincinnati, OH. http://www.cdc.gov
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6494 − 99 (2015)
4.2 The asphalt fume is extracted with a known volume of benzene. The benzene extract is then evaporated to dryness in a
vacuum oven. The benzene soluble fraction (BSF) is then determined gravimetrically.
5. Significance and Use
5.1 Asphalt is a material used in the construction of roads and as a roofing material and sealant.
5.2 This test method provides a means of evaluating exposure to asphalt fume in the working environment at the presently
recommended exposure guidelines.
3
5.2.1 The threshold limit value (TLV) for asphalt (petroleum) fumes is 5 mg/m 8-h TWA, (1998 Threshold Limit Values and
5
Biological Exposure Indices, ACGI
...