Asbestos penetration test system for clothing materials

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Description

For hazardous work such as asbestos abatement, there is a need to assess protective clothing fabrics and seam constructions to assure an adequate barrier against hazardous material. The penetration of aerosols through fabrics usually is measured by challenging fabric samples with an aerosol stream at a constant specified airflow. To produce the specified airflow, pressure differentials across the samples often are higher than exist in a work environment. This higher airflow results in higher aerosol velocities through the fabric and, possibly, measured penetration values not representative of those actually experienced in the field. The objective of the reported work was ... continued below

Physical Description

11 p.

Creation Information

Bradley, O. D.; Stampfer, J. F.; Sandoval, A. N.; Heath, C. A. & Cooper, M. H. April 1997.

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Description

For hazardous work such as asbestos abatement, there is a need to assess protective clothing fabrics and seam constructions to assure an adequate barrier against hazardous material. The penetration of aerosols through fabrics usually is measured by challenging fabric samples with an aerosol stream at a constant specified airflow. To produce the specified airflow, pressure differentials across the samples often are higher than exist in a work environment. This higher airflow results in higher aerosol velocities through the fabric and, possibly, measured penetration values not representative of those actually experienced in the field. The objective of the reported work was to develop a test method that does not require these higher airflows. The authors have designed and fabricated a new system that tests fabric samples under a low, constant, specified pressure differential across the samples. This differential is adjustable from tenths of a mm Water Gauge (hundredths of an in WG) to over 25-mm WG (1-in WG). The system operates at a pressure slightly lower than its surroundings. Although designed primarily for asbestos, the system is equally applicable to the testing of other aerosols by changing the aerosol generator and detector. Through simple modification of the sample holders, the test apparatus would be capable of evaluating seam and closure constructions.

Physical Description

11 p.

Notes

OSTI as DE97004451

Source

  • American Society for Testing of Materials (ASTM) conference, Orlando, FL (United States), 18-19 Jun 1996

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  • Other: DE97004451
  • Report No.: LA-UR--97-241
  • Report No.: CONF-9606239--2
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/463655 | External Link
  • Office of Scientific & Technical Information Report Number: 463655
  • Archival Resource Key: ark:/67531/metadc684154

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Creation Date

  • April 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

Description Last Updated

  • Nov. 18, 2015, 6:31 p.m.

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Bradley, O. D.; Stampfer, J. F.; Sandoval, A. N.; Heath, C. A. & Cooper, M. H. Asbestos penetration test system for clothing materials, report, April 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc684154/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.