
API RP 1637
API RP 1637: API Color-symbol System to Identify Equipment, Vehicles, and Transfer Points
CDN $87.00
This publication was last reviewed and confirmed in 2025.
Description
This RP describes a system for marking equipment used to store and handle bulk petroleum, alcohol-blended petroleum and biodiesel products. The equipment marking color-symbol system described in this recommended practice facilitates easy identification of products by means of colors, symbols and alphanumeric designations. The principal purpose of this marking system is to identify product transfer points for tank-truck loading and unloading at distribution terminals and retail outlets to prevent errors in product handling. The marking system described in this recommended practice does not cover aviation fuels.
Edition
5
Published Date
2025-08-16
Status
Current
Pages
19
Format 
Secure PDF
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Abstract
This RP describes a system for marking equipment used to store and handle bulk petroleum, alcohol-blended petroleum and biodiesel products. The equipment marking color-symbol system described in this recommended practice facilitates easy identification of products by means of colors, symbols and alphanumeric designations. The principal purpose of this marking system is to identify product transfer points for tank-truck loading and unloading at distribution terminals and retail outlets to prevent errors in product handling. The marking system described in this recommended practice does not cover aviation fuels.
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