Re: [PSUBS-MAILIST] measurment of CO content.

[SubMark@aol.com]

hi im new here but i have mesured CO2 using a glass tube w/colored paper in it  you  break the ends off  stick the tube in a big seringe and suck up your gas sample paper turns color depending on ppm.take a look at mining safety analyzers they probly have a dual unit that will do o2 and co2 and be waterproof and explosionproof and workin conditions of changing pressure.probly cost a few grand.carry the dragger tubes as a backup. have a nice day           my name is mark