Document kqXnvbpXMERNxvbzQn1b04ab

b- Ceiling concentrations: Ten fibers, longer than 5 micrometers, per cubic centimeter(10 f/cc). OSHA Instruction CPL 2-2.21A of February 18, 1981 states that the medical examination requirements of the asbestos standard will be required where the 7 to 8-hour TWA fiber concentration is 0.1 f/cc or greater. Extensive field monitoring has demonstrated that the proper use of asbestos-containing gaskets can result in dust levels which are less ^ than an 8-hour TWA of 0.1 f/cc. By following the work practices re- f commended in this booklet when using such products, dust levels can be minimized. PRODUCTS AND OPERATIONS These work practices apply to the use of non-friable asbestos-contain- */ ing compressed, beater-addition, and gasket millboard^material when \ furnished as precut gaskets or in sheets a.nd rolls. Operations to which these work practices apply include: A. Storage B. Fabrication C. Installation D. Replacement E. Housekeeping and Waste Disposal ` . RECOMMENDED WORK PRACTICES A. Storage Gaskets materials are typically received in three forms: sheets, rolls, and precut gaskets. Storage areas should be kept clean VPD-158-0000328