PDFWAC 296-818-30015
Blast cleaning nozzles.
You must make sure nozzles are all of the following:
(1) Mounted on a support when not in use;
(2) 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: |
1. Connected to the manual control of the nozzle; and | |
2. Have the relief valve or opening located so it can safely vent. |