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5. Handling Precautions
Precautions for operation
D a n g e r
● Do not use for living beings (especially pathogens).
Experiments for living beings must be performed by using specially designed
equipment.
● Do not use for radioactive materials.
Experiments handling radioactive material must be performed by using
specially designed equipment.
W a r n i n g
● Do not use perchloric acids.
If a perchloric acid is used, the exterior and interior of this product may be
corroded and the deposition may cause an explosion.
● Do not use in a flammable or explosive gas atmosphere.
This product is not explosion proof and therefore, may cause a fire or
explosion, if an arc is generated by turning ON or OFF the electric switch.
● Do not obstruct the baffle plate.
If the baffle plate is blocked by a device placed in the hood, the discharged
air may flow in the opposite direction because of reduced discharge air flow,
or turbulence.
● Heat sources used in the hood must be limited to the extent as shown in the table below.
Type
Heat
quantity
used
(kcal/hr)
Equivalent
Gas burner
Electric heat
Front wind
speed at
0.5 m/s
LDS-120
1300
1
1.5 kW
LDS-150
2000
2
2.3 kW
LDS-180
2400
3
2.8 kW
● Use of heat source such as burner, hotplate, etc. and experiment work should be performed at
the center of hood as far as possible.
● Do not use heating devices such as burners, without operating the exhaust blower.
● Note that the controlled wind speed of this product with the windowpane fully opened does not
comply with “Ordinance on Prevention of Hazards Due to Specified Chemical Substances” and
“Ordinance on Prevention of Organic Solvent Poisoning”.
Working surface (excluding the desk top type)
If you want to use a heat source (such as gas burner and hot plate) on ceramitite or epoxy
working surface, place the attached insulation board between working surface and heat
source.
When disposing waste liquid containing strong acid or alkaline, drain it into the spot sink
directly while diluting it with water.
Do not leave corrosive or flammable chemical on the working surface for a long time.
