RE: Spam:RE: Low level natural gas leaks

[Guest guest]

Just checked out the TVA and its more than we can afford. Is anyone familiar with a cheaper way to detect natural gas leaks in the 1-10 ppm range?

Spam:RE: Low level natural gas leaks

Dear Curtis:While I haven't seen it too often, in my years as an IAQ investigator I have seen definite evidence that a low level leak of natural gas was most likely causing adverse health symptoms in those exposed.One interesting side light is that the gas company only has equipment sensitive enough to look for natural gas levels approaching the Lower Explosive Limit (LEL), while concentrations lower than that are capable of causing the adverse health symptoms, but the gas company says that no leak is detected. I suspect that this false negative situation occurs often. Sincerely,--LIFE ENERGY ASSOCIATES20 Darton StreetConcord, MA 01742-5710www.LifeEnergyAssoc.com--------- How can I measure indoor TVOC> > > > > > > Dear Group members,> > > > I would like to ask all members. What is the best and most practical way to > measure indoor TVOC levels?> > > > Is it with a PID unit and the values expressed in isobutylene ?> > > > Is it collection by canister/tube and then sent to a lab where the values are > expressed in Toluene?> > > > Is it by FID ?> > > > The problem is the letter T (Total) a PID does not detect Totals!> > > > I require help on this point as I am involved in a technical commission which > has set the indoor limit at 0.6 mg/m3 expressed in Isobutylene using a 10.6 eV > Lamp!> > > > > > Help very much require for type of equipment required and if possible pros and > cons from people in this area.> > > > Thanks again,> > Gerard > > > > > > > > > >