Search Results for: Instruments for physical analysis
shelf life. oxygen gas is passed over one side of the sample, while nitrogen flows over the other side; then out to a mocon coulometric sensor. the sensor measures oxygen permeating through the sample which appears in the nitrogen stream. astm methods: f1927, d3985, or f1307. usual units: cm3/m2.day for
films or cm3 /day for packages. test instruments: four mocon ox-tran 2/21 modules. test temperature and humidity vary to suit end-use application. common conditions are 23degc, 0% relative humidity (dry), or 75% rh, or others. application: plastic films, sheets, whole packages, bottles, tubs, trays,...
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