WAC 296-307-455   Additional requirements for dip tanks using flammable or combustible liquids.  

     Summary.

     IMPORTANT:

     This section applies to:

     • Flammable and combustible liquids (flashpoint below 200°F)

     • Liquids that have a flashpoint of 200°F (93.3°C) or higher if you:

     – Heat the liquid

     – Dip a heated object in the tank

     Your responsibility:

     Safeguard employees working with dip tanks containing flammable or combustible liquids

     You must:

     CONSTRUCTION

     Include additional safeguards when constructing dip tanks

     WAC 296-307-45505

     Provide overflow pipes

     WAC 296-307-45510

     Provide bottom drains

     WAC 296-307-45515

     FIRE PROTECTION

     Provide fire protection in the vapor area

     WAC 296-307-45520

     Provide additional fire protection for large dip tanks

     WAC 296-307-45525

     ELECTRICAL WIRING AND EQUIPMENT AND SOURCES OF IGNITION

     Prevent static electricity sparks or arcs when adding liquids to a dip tank

     WAC 296-307-45535

     Control ignition sources

     WAC 296-307-45540

     Provide safe wiring and electrical equipment where the liquid can drip or splash

     WAC 296-307-45545

     HOUSEKEEPING

     Keep the area around dip tanks clear of combustible material and properly dispose of waste

     WAC 296-307-45550

     HEATING LIQUID

     Make sure heating the liquid in your dip tanks does not cause a fire

     WAC 296-307-45555

     HEAT DRYING

     Make sure a heating system used for drying objects does not cause a fire

     WAC 296-307-45560

     CONVEYORS

     Make sure the conveyor system for dip tanks is safe

     WAC 296-307-45565



[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 03-10-068, § 296-307-455, filed 5/6/03, effective 8/1/03.]