"This SAE Recommended Practice provides test procedures@ requirements@ and guidelines for singlecolor Gaseous Discharge Warning Lamps. Rationale??This document has been superseded by the lighting technology independent documents SAE J595 ""Directional Flashing Optical Warning Devices for Authorized Emergency@ Maintenance@ and Service Vehicles"" and SAE J845 ""Optical Warning Devices for Authorized Emergency@ Maintenance@ and Service Vehicles"" which should now be used for the evaluation of single color gaseous discharge warning lamps in place of SAE J1318."