ANSI ASSE A10.6-2006 pdf download ANSI/ASSE A10.6-2006 Safety and Health Program Requirements for Demolition Operations- American National Standard for Construction and Demolition Operations
3.5 Catch Platform. A temporary structure erected around, attached to and abutting the building being demolished for the purpose of safeguarding and protecting he employees and the public by catching and retaining faling objects or debris.
3.6 Chute. A trough or tube used to guide and transport sliding objects, materials or debris from a higher to a lower level.
3.7 Competent Person. One who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are unsanitary, hazardous or dangerous to employees and who has the authorization to take prompt corrective measures to eliminate them.
3.8 Defective. Incapable of reliable, safe operation.
3.9 Demolition. Dismanting, razing, destroying or wrecking any building or structure or any part thereof,
3.10 Demolition Ball. A large steel weight suspended from a crane boom and used to demolish by impact.
3.11 Engineering Survey. An evalu- ation of the conditions on a project site in preparation for the development of plans and procedures to bring the structure down.
3.12 Equivalent. An alternate design, feature，device or protective action that provides an equal degree of safety. 3.13 Factor of Safety. The ratio of the ultimate (breaking) stress of a member or a piece of material to the actual working stress or to the maximum permissible (safe load) stress when in use. 3.14 Floor Arches. The arch-shaped bracing between steel floor beams or girders，irespective of the type of floor system.
3.15 Lumber Sizes. The nominal stock sizes of lumber.
3.16 Personal Protective Equipment. Any gloves， shoes, hard hats， clothing, respiratory equipment, glasses, etc., designed to protect a worker from injury and health hazards.
3.17 Qualified Persons. Those who by possession of a recognized degree, certificate or professional standing or by extensive knowledge, training and experience in the demolition industry have successfully demonstrated their ability to solve or resolve problems relating to the subject matter of this standard.
3.18 Shall. Indicates a mandatory requirement.
3.19 Should. Indicates an advisory recommendation.
3.20 Sidewalk Shed. A protective structure located upon any route used as a pedestrian or vehicular passageway and subjected to debris and falling object hazards as a result of operations being performed.