When dispensing Class I liquids, what does NFPA require regarding electrical bonding?

The National Fire Protection Association (NFPA) guidelines address the risk of static electricity ignition when dispensing Class I liquids, which are flammable liquids with a flash point below 100°F (37.8°C). When using these liquids, it is crucial to manage static electricity properly, as it can lead to significant hazards.

The correct choice states that electrical bonding is not required for plastic containers. This is based on the understanding that plastic containers are generally non-conductive and do not carry the same risk of static discharge that conductive materials, like metal or glass, might. Because plastic does not allow for the rapid buildup of static charges to the same extent as conductive containers, there is less risk of an ignition source emerging from static discharge when using these containers.

In contrast, other materials, particularly metal and glass containers, may necessitate bonding to ensure they are at the same electrical potential as the dispensing system, thereby reducing the risk of static electricity igniting flammable vapors. This is why methods of bonding are critical when working with metal or glass and are not required when using plastic containers.