BUCHI Wet Digester B-440 - Manual (Page 17)

6 Operation
17 B-440 Operation Manual, Version D
6 Operation
This section gives examples of typical instrument applications and instructions on how to operate the
instrument properly and safely. See also section 2.5 “Product safety” for general warnings.
The Wet Digester is also capable to perform ashing at high temperatures. However, wet diges-
tions often require aggressive acids at high temperatures for processing which are hazardous to life
forms. There is also a potential risk of fi re when working with easily fl ammable substances in the Wet
Digester.
! WARNING
Death or serious burns by fl ammable sample materials.
Do not overheat the sample materials s
Do not cover any part of the device during operation or when device is hot s
Ensure fi re extinguishing material is appropriate for chemicals in use s
Avoid condensation of fl ammable substances at the glass hood s
! WARNING
Risk of fi re and serious or moderate burns when touching hot housing parts.
Always install upper and lower check plates at both sides of the heating chamber s
Use the handle to lift the glass hood s
Use a tongs to handle the crucibles s
Do not cover any part of the device during operation or when device it hot s
! CAUTION
Risk of burns by hot machine parts and glassware.
Do not touch hot parts or surfaces s
Let the system and inserted glassware cool down safely s
Do not move the instrument or parts of it when hot s