Abstract: A method for casting friable asbestos-containing material into a non-friable mass includes the steps of: (1) mixing portland cement, molding plaster, plasticizer, water and friable asbestos-containing material in a mixer; (2) pouring the mixture into a plastic bag positioned in a form; (3) compressing the mixture within the form prior to the curing process; (4) embedding a lifting eye in the mixture; (5) allowing the mixture to cure to a hardened state; (6) removing the form from the hardened mass; and (7) sealing the upper end of the plastic bag to enclose the hardened mass.

Abstract: A method and means for laundering contaminated clothing comprising a facility which is generally divided into a wash side and a dry side with several other rooms being associated therewith. The facility and the method described in association therewith permits contaminated clothing to be brought into the wash side of the facility, laundered and passed into the drying side of the facility. Once in the drying side of the facility, the clothes may be dried and then bagged for subsequent removal. The method prevents contaminants from being released into the atmosphere or carried from the interior of the facility by the person conducting the laundry operation.

Abstract: An air sampler is described which appears to be nothing more than a bulletin board or the like. The air sampler is contained within a housing and has a pair of air sampling cassettes positioned therein which sample the air surrounding the air sampler.

Abstract: A supplied air respirator system is described for use in an enclosed work area wherein an asbestos abatement action is being conducted. A conventional air filtration unit is provided and which has its discharge side in communication with a clean air box. Positioned within the clean air box is a HEPA filter intake box having a HEPA filter contained therein with the discharge side thereof being connected to one or more air pumps. The discharge side of each of the air pumps is connected to an air cooler or heat exchanger coil unit, filter system and hose reel assembly. The heat exchanger coil unit cools the compressed air with the filter systems positioned downstream thereof being utilized to remove any excess condensation from the cooled air.

Abstract: A wheeled enclosure provided for transporting a person from a contaminated area to a decontamination facility. The enclosure has a side door to permit the contaminated person to enter the interior thereof and to exit therefrom. The enclosure also has a door provided in the top portion thereof to permit the contaminated person to enter the interior of the enclosure. A filtered air intake is also provided for the enclosure.

Abstract: A Y-shaped air diverter box is utilized to permit the replacement of a malfunctioning air filtration unit which is being utilized in a contaminated work site area. The Y-shaped air box is utilized in such a manner so as to permit the purging and cleaning of the air conduit which normally connects the air filtration unit to an air exhaust as well as providing a means for cleaning the exhaust side of the new air filtration unit which is being placed into service.

Abstract: A portable isolation enclosure includes an open-bottomed enclosure having walls and a top portion constructed from a lightweight structural frame material with a lightweight fabric stretched thereacross to form a sealed enclosure. Windows of a transparent plastic material are mounted in the wall for viewing outside the enclosure. The lightweight materials of the enclosure allow one or more workers to lift the enclosure off of the ground and transport it from one contaminated area to another. An air filtration unit is pneumatically connected to the enclosure to impart a negative pressure within the enclosure, and to remove asbestos particles from air exhausted from the structure. A selectively closable door is provided in one wall which will permit a person to enter or exit the enclosure, and is designed to allow air to enter the enclosure, under the influence of the negative pressure.

Abstract: A multiple location negative air pressure monitor is provided which enables the air pressure within a work space to be monitored at various locations throughout the work space so that the site operator is assured that the proper negative air pressure is maintained throughout the work area.

Abstract: An apparatus for taking bulk samples comprising a housing having sampling tube and a pair of syringes mounted therein. One of the syringes contains a wetting agent which is injected into the material being tested prior to the sampling tube being utilized to remove a sample from the material being tested. The other syringe contains an encapsulating material which is injected into the area from which the sample was taken to seal or encapsulate that area to prevent fiber release into the air after the apparatus has been removed from the material being sampled.

Abstract: A Y-shaped air diverter box is utilized to permit the replacement of a malfunctioning air filtration unit which is being utilized in a contaminated work site ara. The Y-shaped air box is utilized in such a manner so as to permit the purging and cleaning of the air conduit which normally connects the air filtration unit to an air exhaust as well as providing a means for cleaning the exhaust side of the new air filtration unit which is being placed into service.

Abstract: An apparatus is described for dampening hazardous material. A collector pan is positioned at the end of an elongated conduit with a spray nozzle being positioned within the collector pan. The spray nozzle is in communication with a source of water under pressure or a suitable encapsulating fluid. The elongated conduit is in communication with a cylindrical trap which in turn is in communication with a conventional filtration unit. When the filtration unit is actuated, air is drawn through the collector pan, through the elongated conduit, through the cylindrical trap and into the filtration unit. Actuation of the spray nozzle will cause the fluid to be sprayed onto the material to be removed, compressed or encapsulated with any asbestos material being dislodged during the spraying operation being collected in the collector pan and delivered to the cylindrical trap.

Abstract: A remote control-monitor console is provided for controlling and monitoring air filtration units located within an enclosed work area in which an asbestos abatement action is taking place. A pressure differential sensor is associated with at least one of the air filtration units located within the enclosed work area and is operatively connected to the remote-control console to enable the condition of the filters in the air filtration unit to be monitored without the necessity of entering the contaminated work area. The air filtration unit may also be operated and controlled by the control-monitor console.

Abstract: A self-contained air monitoring unit with agitated air capability comprising a cabinet having an air pump compartment provided therein into which is furnished filtered air. A blower is provided in the cabinet for drawing air inwardly through the air intake of the cabinet through the air pump compartment and outwardly through a port at the rearward end of the cabinet. An elongated flexible hose may be secured to the air outlet on the cabinet to agitate the air within the space in which an asbestos abatement action has been conducted. A plurality of air pumps are located within the air pump compartment and have their intakes operatively connected to an air sampler located within the space in which the asbestos abatement action is being conducted. During the asbestos abatement action, the air pumps in the air compartment are contained in a clean environment and are cooled by air passing thereover.

Abstract: A plurality of air filtration units located within an enclosed contaminated space have their exhaust connected to an air box located within the enclosed space. The interior of the air box is in communication with an area outside of the enclosed contaminated space. An isolation chamber is mounted on one wall of the air box to permit the insertion of air sampling cassettes into the interior of the air box so that the exhaust air in the air box may be monitored. The isolation chamber also permits the selective removal of the air sampling cassettes from the air box. In both the insertion and removal operations, the isolation chamber prevents contaminants from being released into the enclosed space.

Abstract: A remote control and monitor panel is operatively connected to an air filtration unit located within an enclosed contaminated space. The remote control and monitoring panel is located outside of the enclosed contaminated space so that the air filtration unit may be controlled and monitored without the necessity of entering the enclosed contaminated space where the filtration unit is located.

Abstract: An apparatus is described for use in asbestos removal from an enclosed space. An air inlet is formed in one of the walls of the enclosed space to permit outside air to enter the same. A filtration unit is positioned in the enclosed space and has an air inlet adapted to draw air into the filtration unit. The filtration unit has an air outlet which is in communication with the space outside of the enclosed space. A flexible conduit is connected to the air intake of the filtration unit and is in communication with the outlet end of a cylindrical trap. A flexible conduit extends from the intake end of the cylindrical trap to a collector pan which is positioned adjacent the location where the asbestos material is being removed from within the enclosed space. When the filtration unit is activated, air and the asbestos fibers are drawn into the collector pan and are delivered to the trap with the asbestos fibers being at least partially trapped by water within the cylindrical trap.

Abstract: A remote control and monitor panel is operatively connected to an air filtration unit located within an enclosed contaminated space. The remote control and monitoring panel is located outside of the enclosed contaminated space so that the air filtration unit may be controlled and monitored without the necessity of entering the enclosed contaminated space where the filtration unit is located.