References
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- U.S. Environmental Protection Agency . 1987 . Asbestos-Containing Materials in Schools (Final Rule and Notice). Code of Federal Regulations, 40 CFR, Part 763, Appendix A to Subpart B, pp. 41870–41893 Washington, DC : U.S. EPA .
- U.S. Environmental Protection Agency . 1985 . Guidance for Controlling Asbestos-Containing Materials in Buildings (Purple Book). EPA/560/5–85–024 Washington, DC : U.S. EPA .
- International Organization for Standardization . 1991 . Ambient Air-Determination of Asbestos Fibers—Direct-Transfer Transmission Electron Microscopy Method, DIS10312 Mississauga, Ontario, , Canada : Chatfield Technical Consulting Ltd. . Working Group ISO/TC146/SC3/Wgl, Project Leader: Dr. Eric J. Chatfield
- Barron , P. 1989 . Method 7400, NIOSH Manual of Analytical Methods, Revision No. 3, pp. 7400–1 to 7400–14 Cincinnati, OH : DHHS (NIOSH) .
- U.S. Environmental Protection Agency . 1982 . Interim Method for the Determination of Asbestos in Bulk Insulation Samples. EPA-600/M482–020 Washington, DC : U.S. EPA .