VWR MICRO STAR 17 Instruction Manual page 37

The careful inspection of the seals and seal surfaces for signs of wear and damage such as cracks,
scratches and embrittlement is extremely important.
Aerosol-tight applications are not possible if the lids are open.
Aerosol-tightness requires the correct operation when filling the sample vessels and closing the rotor lid.
Quick Test
As a quick test, it is possible to test the aerosol-tightness of fixed-angle rotors using the following
process:
1. Lubricate all seals lightly.
Always use the supplied grease when lubricating the seals.
2. Fill the cavities with approx. 10ml of carbonated mineral water.
3. Close the rotor as explained in the handling instructions.
4. Shake the rotor vigorously using your hands.
This releases the carbonic acid gas which is bound in the water, resulting in excess pressure. Do not
apply pressure to the lid when doing so.
Leaks can be detected by escaping water or the sound of escaping gas.
Replace the seals if you detect any leaks. Then repeat the test.
5. Dry the rotor, rotor lid and the cover seal.
VWR
5
Rotor Information
Checking the Aerosol-Tightness
MICRO STAR 17 / 17R 5-7