: Brown Technical Book Store
This standard applies to material hoists used to raise or lower materials during construction, alteration or demolition. It is not applicable to the temporary use of permanently installed personnel elevators as material hoists. This standard shall not apply to: 1. Elevators constructed and operated in conformance with ANSI/ASME A17.1, Safety Code for Elevators and Escalators. 2. Personnel hoists constructed and operated in conformance with ANSI/ASSE A10.4, American National Standard Safety Requirements for Personnel Hoists and Employee Elevators for Construction and Demolition Operations. 3. Manlifts constructed and operated in conformance with ANSI/ASME A90.1, Safety Standard for Belt Manlifts. 4. Transport platforms and overhead winch systems are not subject to this standard. Purpose. This standard defines safety requirements for the use and operation of material hoists used in construction. Exceptions. In cases of practical difficulties, unnecessary hardships or new developments, exceptions to the literal requirements shall be permitted by the enforcing authority to allow the use of other devices or methods, but only when it is clearly established that equivalent protection is thereby obtained.