Explanation Of Symbols; Safety Instructions - IKA AOD 1.1 Mode D'emploi

Explanation of symbols

This symbol identifies information that is absolutely
essential for your safety and health. Failure to obser-
ve this information may result in negative effects for
your health and injuries.
This symbol identifies information that is important for
problem-free operation as well as for working with the
decomposition vessel. Failure to observe these
instructions may result in inaccurate measurement
results or damage to the decomposition vessel.
Contents
Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Contens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Included with delivery AOD 1.1 . . . . . . . . . . . . . . . . . . . . . . .12
Opening the decomposition vessel . . . . . . . . . . . . . . . . . . . .12
Fastening cotton thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Combustion procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Cleaning the decomposition vessel . . . . . . . . . . . . . . . . . . . .13
Halogens and decomposition . . . . . . . . . . . . . . . . . . . . . . . . .13
Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Decomposition vessel identification . . . . . . . . . . . . . . . . . . . .15
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Technical data for AOD 1.1 . . . . . . . . . . . . . . . . . . . . . . . . . .17
Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Spare parts diagram for theAOD 1.1 . . . . . . . . . . . . . . . . . . .17
10
Safety Instructions
Operation of decomposition vessels is only permitted in combi-
nation with the AOD 1 system.
Operating requirements:
The maximum amount of energy input into the decomposition
vessel must not exceed 30000 J. (Select the weight of the sam-
ple accordingly). The permissible operating pressure of 195 bar
must not be exceeded. The maximum permissible operating
temperature must not exceed 50 ° C.
Do not fill the decomposition vessel too full of the sample. Only
fill the decomposition vessel with oxygen up to a maximum pres-
sure of 40 bar. Monitor the adjusted pressure on the pressure
reducer. Perform a check before every combustion to ensure
there are no leaks (see page 13).
Explosive substances:
Many substances tend to combust in an explosive manner (for
example because of the formation of peroxide). This may cause
the decomposition vessel to burst.
The AOD 1.1 decomposition vessel must not be used for
examinations on samples that are capable of exploding. It is
absolutely essential to use a special high-pressure decom-
position vessel to contain the sample in these cases!
Notes on the sample:
Substances of which the combustion behavior is not known
must be examined for their combustion behavior before combu-
stion in the decomposition vessel AOD 1.1 (danger of explosion).
If you are burning unknown samples, leave the room or keep a
safe distance between you and the calorimeter.
Benzoic acid must only be burned in the form of pellets!
Combustible dust and powder must be compressed into pellets
before combustion. Oven-dry dust and powder such as wood
chips, hay, straw, etc. burn in an explosive manner! They must be
moistened first! Readily combustible liquids with a low vapor pres-
sure must not be come in direct contact with the cotton thread (for
example tetramethyl dihydrogen disiloxan)!