... .2 Critical Pressure, Mpa 4.99 Specific Heat of Liquid, 30°C, [KJ/(kg•°C)] 0.31 ODP 0.034 GWP ... 0.17 Packing disposable steel cylinder30b/13.6kg,50b/22.7kg, recyclable steel cylinder 400kg/400L ,800kg/800L ,1000kg ... Road, 16F Tai Jia Yuan Palaza, Hangzhou, Zhejiang Province, China. 30 LB refrigerants R22