This standard sets out requirements for power-operated service lifts of the types listed in Clause 2.2 and intended for operation under any of the following conditions:(a) Rated car speed not more than 1 m/s.(b) Rated load more than 12 kg.NOTE: Lifts required to carry a load in the range 12 kg to 50 kg are designed for and rated at 50 kg, because of the possibility of a person standing on the roof.(c) Internal car volume more than 0.06 m3.This standard is complementary to AS 1735.1 and the relevant requirements of AS 1735.2, but the requirements of this standard take precedence over corresponding requirements in those standards.