A common question we get regarding flammable liquids is:
Do we have to ground and bond non-conductive containers smaller than 5 gallons?
The proper question should be…
what do we need to do to SAFELY transfer flammable liquids into non-conductive containers that are 5 gallons and smaller?
The British Columbian Worker’s Compensation Board standard says it best and offers us four (4) means/methods by which we can control static when filling these smaller, non-conductive containers.
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Electrostatic charge 5.29 If glass, plastic, or other non-conductive container with a capacity of 23 liters (5 imp gal) or more is used to transfer a flammable liquid, the accumulation of electrostatic charge near the surface of the liquid must be eliminated or controlled by (a) limiting the flow velocity of the liquid to less than 1 m/s (200 fpm), (b) using a grounded lance or nozzle extending to the bottom of the container, (c) limiting free fall, (d) using anti-static additives, or (e) other effective means |
Source: https://www.bclaws.gov.bc.ca/civix/document/id/complete/statreg/296_97_03