Indian Standard: SELECTION, INSTALLATION AND
2018-11-14u2002·u2002Also examine the wheel carriage and discharge hose assembly with control nozzle for free flow and test it with dry air. In case of dry powder extinguisher for metal fire as per IS 11833, in addition to (j) above, examine the applicator pipe and the discharge shower head for freedom from clogging and clean it with dry air.
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