Keep it simple. As long as you factor in the permeability of balloon latex. You'd have to subtract the permeability losses over time to calculate the scope of a leak. I dont have the permeability of latex to air molecules (if you arent using another gas with larger molecules), but you should also consider the effects of the latex formulation, thickness, ambient temperature, humidity, and of course pressure. Once you have those calculated, you should be able to determine the volumetric losses at the balloon, and then you can know the losses (if any) at the tank being tested.
HTH > Date: Tue, 22 Sep 2015 13:56:12 -0500 > To: krnet at list.krnet.org > Subject: Re: KR> Fuel tank pressure test > From: krnet at list.krnet.org > CC: ppaulvsk at aol.com > > If you noticed in my picture you saw a thread wrapped around the balloon and > if thread falls off that means the balloon has qshrunk which means you have > an air leak. Why make it difficult? Keep it simple > >
