Revision Standard - Inactive - Superseded.Recommended design practices and procedures for storage, location, mounting, ventilation, instrumentation, preassembly, assembly, and charging of large lead storage batteries are provided. Required safety practices are also included. This standard applies particularly to installations at generating stations, including nuclear, and large substations. Portions of this recommended practice that speci fically relate to personnel and nuclear plant safety are mandatory and are designated by the word shall; all other portions are recommended practices and are designated by the word should.