§ 1910.125 Additional requirements for dipping and coating operations that use flammable liquids or liquids with flashpoints greater than 199.4 °F (93 °C).
If you use flammable liquids, you must comply with the requirements of this section as well as the requirements of §§ 1910.123, 1910.124, and 1910.126, as applicable.
| You must also comply with this section if: | And: |
|---|---|
| • The flashpoint of the liquid is 199.4 °F (93 °C) or above | • The liquid is heated as part of the operation; or • A heated object is placed in the liquid. |
(a) What type of construction material must be used in making my dip tank? Your dip tank must be made of noncombustible material.
(b) When must I provide overflow piping? (1) You must provide properly trapped overflow piping that discharges to a safe location for any dip tank having:
(i) A capacity greater than 150 gallons (568 L); or
(ii) A liquid surface area greater than 10 feet (0.95 m ).
(2) You must also ensure that:
(i) Any overflow piping is at least 3 inches (7.6 cm) in diameter and has sufficient capacity to prevent the dip tank from overflowing;
(ii) Piping connections on drains and overflow pipes allow ready access to the interior of the pipe for inspection and cleaning; and
(iii) The bottom of the overflow connection is at least 6 inches (15.2 cm) below the top of the dip tank.