The ODOROMETER is a portable instrument that can be used by gas companies to check the odorization of the gas being distributed. The instrument provides an easy method of determining the odor intensity of a gas stream at any convenient point in the gas distribution or transmission
lines, and is a faster method of determining odor levels at high or low gas-air concentrations than the room-test method. The range of testing on the standard instrument is from one-twentieth of 1% to slightly over l% gas in air. This range enables the operator to check the accepted gas
concentrations for the detection of an odorant in natural gas.