Fast and accurate verification of carbonated beverage shelf-life is now possible via the Permatran-C Model 10. This instrument measures the carbon-dioxide transmission rate of individual plastic carbonated beverage bottles. The non-destructive test takes as little as 3 hours to produce results. The Permatran-C Model 10 will graphically display projected shelf life, based on a user-specified loss limit, in a matter of hours. (The loss limit is the amount of carbon dioxide the carbonated beverage can lose before it is considered bad.)