report: slow air leak on ISS

In article , Gene
Nygaard wrote:

Of course, there are many other possibilities as well, such as volume
units including:

register ton 100 ft³ = 2.83 m³
dived displacement of sub 35 ft³ = 0.991 m³

and many other units of energy and power and God knows what else, or a
score of 100 in 301 darts, or a speed of 100 mi/h, etc., etc.

An "assay ton" is about 29.17 g.

(You find the number of milligrams of gold in an assay ton of ore, and
that tells you the number of troy ounces in a 2000 avoirdupois pound
ton of ore.)

--
David M. Palmer (formerly @clark.net, @ematic.com)

Jan C. Vorbrüggen wrote:

The rate is amplied by the ratio of the volume of the whole station to that of
the closed-off portion. That's why a few hours for the smaller
parts will be enough to tell one way or the other.

They have reportedly found and fixed the leak (in a stainless steel hose
that vents the interior space of a window in a US module), but are going
to isolate the modules anway to check. The leak was reportedly found
with the Ultrasound Leak Detector (which I assume detects high
frequency noise from escaping air.)

Paul

Looks like they are going to start closing hatches. But watching for a
pressure drop seems like a very slow way to find the leak.

The rate is amplied by the ratio of the volume of the whole station to that of
the closed-off portion. That's why a few hours for the smaller
parts will be enough to tell one way or the other.

Jan

"Paul F. Dietz" writes:

They have reportedly found and fixed the leak (in a stainless steel hose
that vents the interior space of a window in a US module), but are going
to isolate the modules anway to check. The leak was reportedly found
with the Ultrasound Leak Detector (which I assume detects high
frequency noise from escaping air.)

This Ultrasound Leak Detector, is this a US device or a Russian one?


Jochem

--
"A designer knows he has arrived at perfection not when there is no
longer anything to add, but when there is no longer anything to take
away." - Antoine de Saint-Exupery