Brad Beyenhof wrote:
Ralph Shumaker wrote:
Stewart Stremler wrote:
The way I'd heard was to go into the bathroom, run the shower on
hot and get it full of steam, then turn off the shower, and wait
for the steam to clear.
I *like* that approach. But we didn't have a shower at work. :(
Anyone with a decent air quality tester willing to try this?
I don't have a tester, but I have a wife who's an environmental
scientist specializing in air quality...
She says that the shower approach is fundamentally flawed by the large
volume of the pseudo-clean-room and its inherent difficulty in remaining
so, especially with the introduction of a human body to the mix.
I used a can of air to get the bag partially inflated. I cleaned the
tools the best I could and wiped them down with lint-free towels...
That's basically what she described as the best way to maintain a
pseudo-clean-room... restrict the volume as much as possible. As long as
you clean your tools well and evacuate the bag with compressed air
before sealing it, you'll have the smallest particulate concentration
possible in such a makeshift environment.
Actually, I did not "evacuate" the bag (if that means using the
compressed air to push out air that's already in the bag). I started
with a clear trash bag that was still flat. I bunched up the open end
in one hand, let go just long enuf to insert the straw of the can of
compressed air (bag still completely devoid of any air), grabbed the
bunched up opening again, held it securely around the straw, slightly
inflated the bag, and removed the straw. I set a book on the opening
while I cleaned the tools and the drives. I held the bag again, with
the opening grasped in one hand, fanned out the opening, carefully
inserted the tools and the drives (with the drives inside static-free
drive bags to protect the drives from static and the bag in my hand from
catching on the drives' circuit boards. I tried to prevent any air
mixing while inserting the objects in thru the mouth of the bag. Then I
inflated the bag to a level I thought would lend itself to the work at
hand and sealed the opening. If _any_ air from the outside got in, it
was very little, perhaps one part in many thousands. And I'm not
talking particulates, but rather one part of room air to many thousand
parts of air from the can of compressed air. I'm guessing particulates
were one part per million or maybe per billion.
Even so, after I sealed the bag, I let the whole thing sit undisturbed
for several hours before I started, so that hopefully any particulates
in the air would settle on a surface and cling to it. And while
working, I moved everything *very* slowly, to try to prevent air
currents within the bag.
I was *very* cautious from step 1 to the very end, right up to where I
tightened down the last screw. THEN I *RIPPED* THAT BAG OPEN WITH GREAT
GLEE AND UTTER ABANDON!!!!!!!!!!!!!!!
--
Ralph
--------------------
How do you test an uncooperative intelligence when it's smarter than you?
--Stewart Stremler
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