WAC 296-835-12025   Provide additional fire protection for large dip tanks.  

     You must:

     • Provide at least one automatic fire extinguishing system or an automatic dip tank cover if the tank:

     – Holds one hundred fifty gallons or more of liquid

     OR

     – Has four square feet or more of liquid surface area.

     • Make sure automatic fire extinguishing systems or automatic dip tank covers meet the requirements of Table 1.

     Exemption: An automatic fire extinguishing system or an automatic dip tank cover is not required for a hardening or tempering tank that:

     • Holds less than five hundred gallons

     OR

     • Has less than twenty-five square feet of liquid surface area.
Table 1: Automatic Fire Protection System Requirements
IF YOU PROVIDE: THEN YOU MUST:
An automatic fire extinguishing system • Use extinguishing materials suitable for a fire fueled by the liquid in the tank

• Make sure the system protects the:

– Tanks

– Drain boards

– Stock over drain boards.
A dip tank cover • Make sure the cover is:

– Closed by approved automatic devices in the event of fire

– Able to be manually activated

– Kept closed when the tank is not being used

– Made of noncombustible material or tin-clad material with locked metal joints.

     Reference: Automatic fire extinguishing systems have specific requirements. See:

     – WAC 296-24-622 for automatic dry chemical extinguishing system requirements

     – WAC 296-24-623 for automatic carbon dioxide extinguishing system requirements

     – WAC 296-24-627 for automatic water spray extinguishing system and automatic foam extinguishing system requirements.



[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 07-03-163, § 296-835-12025, filed 1/24/07, effective 4/1/07. Statutory Authority: RCW 49.17.010,[49.17].040 , and [49.17].050. 02-15-102, § 296-835-12025, filed 7/17/02, effective 10/1/02.]