SAFE 2010/MaxiSAFE 2010
INSTRUCTION MANUAL
Page 17 of 35
81-09-IM.doc
Acceptance:
Maximum local penetration: 0.01 % of upstream concentration.
7.5. Test of the retention at front opening
General:
This test is optional, but useful for determination of the operator protection after installation where
the cabinet is under influence of the laboratory environment.
Equipment:
KI – Discus tester, equipment that with an aerosol challenges the air curtain, established by the
down- and inflow.
Procedure:
With a spinning disc the test aerosol (Potassiumiodide 1.5 % in Ethanol) is spread inside the
cabinet, in a homogeneous aerosol cloud. The particles leave the disc in a horizontal course, and
try to pass the air curtain.
A sucking head with a filter inside, catches particles which pass the air curtain,. With a developing
agent (Palladiumchloride 0.1 %) passing particles will shows up as brown spots. The amount of
spots is to be counted.
Acceptance: A
pf
≥1x10
5
.
8. Work rules
8.1. Before start-up
• The cabinets may only be operated at temperatures between 15 °C and 35 °C, at maximum
80 % relative humidity, and at normal air pressure.
• All cabinets are developed and produced for use in clean environments.
• They must not
be operated outdoors or in environments with extreme air pollution. The safety
cabinets are not intended to filter vapours containing acids or organic solvents. The safety
cabinets must not
be used as a fume hood.
• Approximately 15 minutes before any work in the cabinet, the fan of the unit must be
switched on at normal velocity. The work chamber and the front- and side windows are to be
carefully cleaned and disinfected. Use an ethanol solution or similar. It is recommended to
use special lint-free material. Do not use explosive disinfectants. See also section Fejl!
Ukendt argument for parameter..
• Objects and appliances must be carefully cleaned or disinfected before being introduced into
the work chamber. Do not bring in writing utensils, packing material, etc.
• The front window and the armrest is positioned in working position and kept in that position
during the entire work process.
• Necessary appliances for use during work must be placed within easy reach.
• Secures the appropriate protection of the operator as well as the product (e.g. clothes,
gloves, etc.).
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