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OSHA CFR 29 - Bonding and Grounding Wires Codes
1910.106(e)(6)(ii) Grounding/Bonding
OSHA 1910.106(e)(6)(ii): Grounding. Category 1 or 2 flammable liquids, or Category 3 flammable liquids with a flash point below 100 °F (37.8 °C), shall not be dispensed into containers unless the nozzle and container are electrically interconnected. Where the metallic floorplate on which the container stands while filling is electrically connected to the fill stem or where the fill stem is bonded to the container during filling operations by means of a bond wire, the provisions of this section shall be deemed to have been complied with.
OSHA 1910.106(a)(19)(iii) Grounding/Bonding
OSHA 1910.106(a)(19)(iii): Category 3 shall include liquids having flashpoints at or above 73.4 °F (23 °C) and at or below 140 °F (60 °C). When a Category 3 liquid with a flashpoint at or above 100 °F (37.8 °C) is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 3 liquid with a flashpoint below 100 °F (37.8 °C).
OSHA 1910.106(a)(19)(iv) Grounding/Bonding
OSHA 1910.106(a)(19)(iv): Category 4 shall include liquids having flashpoints above 140 °F (60 °C) and at or below 199.4 °F (93 °C). When a Category 4 flammable liquid is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 3 liquid with a flashpoint at or above 100 °F (37.8 °C).
OSHA 1910.106(a)(19)(v) Grounding/Bonding
OSHA 1910.106(a)(19)(v): When liquid with a flashpoint greater than 199.4 °F (93 °C) is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 4 flammable liquid.
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.