Document MMKEOg80BOvwrzRo2K59YdpO9

L. T. Thatcher October 30, 1907 faCe '2. should be established as soon as possible to incorporate those current practices and design features which by these surveys have deconstrated effective dust mission control* ttosfc pro cedures and protective equipment requirements also should be formalised to provide not only an internal operating standard for other departments of the Du Pont Company but also for the guidance of outside eontractors employed by Du Pont under con tract. A permanent quality control program is reccsaended to provide not only quantitative data for internal evaluation of dust control efficiency, but also to document sir quality analysis needed to demonstrate conformance with established TLV's and provide effec tive defense in litigation esses. ttader current conditions s continuous doily monitoring program does not appear to be necessary or desirable, however, a formal program for acunpllng and analysing the work atmosphere with s frequency which will include all phases of asbestos usage should be established and consistently adminis tered for as long as s TLV for asbestos remains in fores* Xn general, once a month should suffice for general work areas. Zf circumstances which Involve unusual dust generation should arise, special monitoring will be required to evaluate the potential exposure severity. Xn so far aa possible, personnel monitory (sampling equipment carried by a selected employee continuously during his work assl&>mont) should be employed. Only In this manner can a truly repre sentative sample of the atmosphere Inhaled by the employee during his eight-hour work day be obtained. Such equipment is available DUP 0900858