Ok, this is rather old but the atmosphere is still pretty much the same. Assuming your standing at sea level with 1 atmosphere pressure and +15C temp and you start to rise in altitude, you'll have roughly dependent upon alot of other factors ...
Altitude Temperature Pressure Approx Ratio of (feet) F C lb/ft^2 Altitude to sea level 0 + 59 + 15 2.12 x 10^3 0 20,000 - 12 - 24 9.73 x 10^2 1/2 40,000 - 70 - 57 3.93 x 10^2 1/5 60,000 - 70 - 57 1.51 x 10^2 1/10 80,000 - 70 - 57 5.81 x 10 1/50 100,000 - 41 - 41 2.31 x 10 1/100 Assuming that you won't be shipping anything in an unpressurized cabin much above 60,000 ft, then testing for temp = -70C, pressure = (14.7 lb/sq.in.)/10 = 1.47 lb/sq.in. should do it. Speaking of humidity at temperatures near or below freezing doesn't really mean anything. ---------- > From: regr...@esaote.com > To: emc-p...@majordomo.ieee.org > Subject: transportation environmental condition > Date: Monday, March 09, 1998 8:43 AM > > Hello all! > Does anybody know the foreseeable environmental condition (temperature, > humidity, pressure) you have during transportation of a device on a plane? > > Of course they depend on flight heigth, but is it possible to get rough, > common-sense data for the design of packaging? > > Many thanks > Massimo > > ------------------------------------------------------- > ESAOTE S.p.A. Massimo Polignano > Research & Product Development Regulatory Affairs > Via di Caciolle,15 tel:+39.55.4229402 > I- 50127 Florence fax:+39.55.4223305 > e-mail: regr...@esaote.com >