Safety Precautions - IKA C 200 Operating Instructions Manual

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Safety precautions

Calorimeter system C 200 may only be used to determine the calorific value of solid and
fluid materials. Only the appropriate original IKA
for this purpose. For detailed information, please see the operating instructions for the
decomposition vessels.
The maximum extra energy added to the decomposition vessel must not exceed 40,000 J
(select the test mass accordingly). The permitted operating pressure of 230 bar must not
be exceeded. The maximum permitted operating temperature must not exceed 50°C.
Do not overfill the decomposition vessel with sample. Only fill the decomposition vessel
with oxygen to a maximum pressure of 40 bar. Check the set pressure on the pressure
reducer. Perform a leakage test before each combustion process (follow operating
instructions for decomposition vessel!).
Some materials tend to explode when combusted (e.g. due to formation of peroxide),
which could cause the decomposition vessel to crack.
Standard decomposition vessels may not be used for testing explosive samples.
If the burning behaviour of a material is unknown, it must be tested before combustion
in the decomposition vessel (risk of explosion). If you are burning unknown samples,
leave the room or keep your distance from the calorimeter.
Benzoic acid may only be combusted in its pressed form! Flammable dust and powder
must be first pressed. Oven-dry dust and powder such as splints, hay, straw etc. explode
when combusted! Always wet these materials first! Highly flammable liquids with a low
vapour pressure (e.g. tetramethyl dihydrogen disiloxane) must not directly touch the
cotton thread!
Furthermore, toxic combustion residue in the form of gases, ashes or condensation, for
example, is possible in the inner wall of the decomposition vessel.
Please observe the accident prevention regulations applicable for the activity and the
workstation. Wear your personal protective equipment.
When handling combustion samples, combustion residue and auxiliary materials, please
observe the relevant safety regulations.
The following materials, for example, could pose a risk:
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corrosive
highly flammable
explosive
bacteriologically contaminated
toxic
® decomposition vessels may be used
IKA -WERKE C 200
®
Ver. 02/2.06