Location requirements, Support requirements, Exhaust requirements – Labconco Protecto Stainless Steel Perchloric Acid Laboratory Fume Hoods 9682100 User Manual
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Chapter 2: Prerequisites
Location Requirements
The fume hood should be located
away from traffic patterns, doors,
windows, fans, ventilation registers,
and any other air-handling device that
could disrupt its airflow patterns. All
windows in the room should be closed.
Support Requirements
DO NOT install the fume hood on a
cart, dolly, or mobile bench. ALL
Protector Perchloric Acid Hood
installations must be permanent and
stationary. The supporting structure
usually consists of a base cabinet and
hardboard support.
Exhaust Requirements
The exhaust duct connection has been designed for 11"
nominal duct (11.00" OD) to allow for minimum static
pressure loss while operating at 100 fpm face velocities.
The 11" diameter exhaust duct also allows for proper
transport velocities away from the hood in the 1000
fpm to 2500 fpm range. The exhaust duct used in
conjunction with the Perchloric Acid Fume Hood
should be fabricated out of Type I, unplasticized PVC
or Type 316 stainless steel. Stainless steel ducting must
require that it be fully welded in place so that it does
not allow any cracks or holes at the joints to allow for
the collection of Perchloric acid. The proper exhaust
volume and static pressure loss are listed next for each
hood model.
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