| Test For General Bacteria In Compressed Air |
| 1. Details |
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Check for general bacteria locations in compressed.
air. |
| 2. Inspection method |
|
First, the test compared the number of bacteria
in the drain water in a compressor with number
of bacteria in water which had been aerated
by WELL AIR cleaned compressed air.
- A: Drain water in a compressor sampled one
month after purchase for the number of general
bacteria.
- B: The same as in "A" above, we
checked the drain water in a compressor tank
10 years after purchase.
- C: Counted the number of general bacteria
in the compressed air that passed through
the WELL AIR. As shown in the figure below,
an aeration vessel was installed after the
WELL AIR. The compressed air was bubbled
through the water, and this water was then
inspected.
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* The aeration vessel was sterilized and pure water was used. The aeration time was 1-1/2 hours. |
| 3. Results |
|
A: Number of general bacterial in drain water
(one month after purchase) |
4000/ml |
Tested on October 4, 1992 |
B: Number of general bacteria in drain water
(10 year after purchase) |
39000/ml |
Tested on September 22, 1992 |
| C: Number of general bacteria in a water
vessel after being aerated by
air passed
through the WELL AIR |
5/ml |
Tested on October 22, 1992 |
|
| 4. Considerations |
|
Air that passes through the WELL AIR has
no drops of moisture.
Reviewing the results above, it is assumed
that the general bacteria found in air compressed
by a compressor might be contained in water
droplets in the compressor, and did not originate
in the air.
Therefore, the following should be noted.
1. Removing the drain water in the compressor
will eliminate the bacteria.
2. When using a sterilizer filter, any drain
water should be removed in advance.
3. However, the WELL AIR does not eliminate
bacteria that are carried in compressed air. |
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