Can be used in either 100% EO or EO/HFCF gas mixture processes. Strip is perforated enabling full or half length usage depending on pack size. distinct color change from red to green. 5/8 inch x 8 inch (1,5cm x 20cm) Chemical Indicator Strip for 100% EO and EO/HCFC gas mixture, Color change from red to green, Perforated. Suggested Applications: For use as an internal pack monitor. Can be used in either 100% EO or EO/HFCF gas mixture cycles.