1.1 This standard specification applies to commercial dishwashing machines (medium and small) suitable for installation in kitchens, cafeterias, and the like operated by government and public authorities and for connecting to 50 c/s alternating current circuits not exceeding 250 V to earth.
NZSS GP 30-1968 history
1956NZSS GP 30-1968 COMMERCIAL DISHWASHING MACHINES MEDIUM AND SMALL