Published: Jan 1999
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Tests were conducted to evaluate fiber release and control methods from certain work practices used for installation of equipment on asbestos-containing resilient floor tile. Air samples collected during controlled operations showed that worker exposure can be expected to remain below the OSHA Permissible Exposure Limit of 0.10 fiber/cc for an 8-hour Time-Weighted Average, and below the Excursion Limit of 1.0 fiber/cc for a 30-minute period.
The criteria for a Negative Exposure Assessment under the OSHA asbestos standard are met, providing that the procedures and controls, including clean-up, described herein are employed by workers properly trained in their use. These procedures are shown to be the equivalent of the Resilient Floor Covering Institute Recommended Work Practices for resilient floor tile insofar as worker protection is concerned. These test results are not applicable to sheet vinyl linoleum with asbestos backing material.
asbestos, negative exposure assessment, floor tile, air sampling
Oberta, Andrew F.
The Environmental Consultancy, Austin, TX
Fischer, Kenneth E.
Principal, Dames & Moore, Inc., Chevy Chase, MD