Asbestos abatement technical specifications, 130 Cedar Street, July 2004

NYC 9/11 Public Portal Document

Asbestos Abatement Technical Specifications For 130 Cedar Street, New York, NY 2.32 Equipment Decontamination Enclosure: That portion of a DES designated • for the controlled transfer of materials and equipment, consisting of a washroom and a holding area.

2.33 Equipment Room: A contaminated area or room that is part of the worker DES with provisions for the storage of contamination clothing and equipment.

2.34 Fiber. An acicular single crystal or a similarly elongated polycrystalline aggregate that displays some resemblance to organic fibers by having such properties as flexibility, high aspect ratio, silky luster, axial lineation and others, and that has attained its shape primarily through growth rather than cleavage.

2.35 Fixed Object: A unit of equipment or furniture in the work area that cannot be removed.

2.36 Friable Asbestos Material: Any material applied onto ceilings, walls, structural members, piping, duct work or any other part of the building structure that when dry may be crumbled, pulverized or reduced to powder by hand or other mechanical pressure.

2.37 Glove bag 'Technique: A method for removing friable ACM from heating, ventilation, and air conditioning (HVAC) . ducts, short piping runs, valves joints, elbows and other non-planar surfaces in a non-contained work area. The glovebag is constructed of 10-mil transparent plastic, two inward- projecting water-wand sleeves, an internal tool pouch and an attached, labeled receptacle for asbestos waste.

2.38 Glovebag: Constructed and installed in such a manner that it surrounds the object or area to be decontaminated and contains all asbestos fibers released during the removal process.

2.39 HEPA Filter. A high efficiency particulate air filter capable of trapping and retaining 99.97 percent of particles (asbestos fibers) greater than 0.3 micrometers mass median aerodynamic equivalent diameter.

2.40 HEPA Filter Equipped Unit: A portable local exhaust system equipped with HEPA filtration. The system shall be capable of creating a negative pressure differential between the outside and the inside of the work area.

2.41 HEPA Vacuum Equipment: Vacuuming equipment with a high efficiency particulate air filter system.

2.42 Holding Area: A chamber in the equipment decontamination enclosure, located between the washroom and an uncontaminated area.

2.43 Homogenous Work Area: A site within the abatement work area that contains one type of ACM and where one type of abatement is used.

Prepared by JLC Environmental Consultants, Inc. Project No. 04-3271 Page 11

NYC-WTC 000125589