National Fire Protection Association 1 - Grounding/Bonding
NFPA 1: 18.104.22.168.2 Grounding/Bonding
Wherever liquids are transferred from one container to another, both containers shall be effectively bonded and grounded to dissipate static electricity.
Please consult your local authority having jurisdiction with your questions and for guidance in conforming to laws as they apply to your application. This is only meant for a reference and does not imply a warranty.