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1.4 LEAK TESTING OF HEPA FILTERS
A LEAK IS FOUND
IF GASKET LEAKS
IF FILTER MEDIA LEAKS
TIGHTEN CLAMPS OR
SEAL WITH SILICONE
EXAMINE FILTER
FOR DAMAGE
EXAMINE
FRAME
FOR
BYPASS
SEAL WITH
SILICONE
VERIFY
THAT LEAK
IS NOT A
CABINET
LEAK
RE-
EXAMINE
FRAME
ROTATE
FILTER
END-FOR-
END 180
DEGREES
REPLACE FILTER
AND RE-TEST
IF
FRAME
LEAKS
IF FRAME
DEFECT IS
FOUND
IF GASKET
STILL
LEAKS
IF NO
FRAME
DEFECT IS
FOUND
IF LOCATION OF LEAK IS UNCHANGED
IF NOT A CABINET LEAK
IF LEAKS MOVES
WITH FILTER
IF
DAMAGE
TO MEDIA
IS FOUND
IF CABINET
LEAK IS
FOUND
IF NO DAMAGE
TO MEDIA IS
FOUND