WAC 296-818-30015   Blast cleaning nozzles.  

     You must:

     • Make sure nozzles are all of the following:

     – Mounted on a support when not in use

     – Equipped with operating valves that are manually held open.

    

Note:	• To help prevent the buildup of static charges, pressurized tanks used to supply abrasive should be:
	– Connected to the manual control of the nozzle;
	AND
	– Have the relief valve or opening located so it can safely vent.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-12-074, § 296-818-30015, filed 6/6/06, effective 9/1/06.]