food packaging bag hermetic sealing quality test Leakage tester GB-M Leakage Tester Application To test the hermetic sealing quality and performance of packaging bags, bottles, cans and so on, used in industries of food, beverage, pharmaceuticals, personal care and so on. Standard ASTM D3078 Item Technical Parameters Vacuum degree 0 -80kPa Vacuum precision 1% Vacuum keeping time 0.1 99.99h Sample size 300 350 mm Intake pressure 0.7 0.8 Mpa Consumption of compressed air 20 L/min Power supply 220 V 50 Hz Instrument size Net weight 20kg Power 100W Ambient temperature