API 1637
Using the API Color-Symbol System To Mark Equipment and Vehicles For Product Identification at Service Stations and Distribution Terminals
standard by American Petroleum Institute, 09/01/1995
Full Description
This recommended practice describes a system for marking equipment used to store and handle bulk petroleum products. The equipment marking color-symbol system described in this recommended practice is different from the system described in API Bulletin 1542, Airport Equipment Marking for Fuel Identification. The marking system described in this recommended practice does not cover aviation fuels.