Refrigent gas R22: 1.eco-friendly, 2.purity:99.8%, 3.colorless, non-toxic, non-flammable and transparent liquefied gas. ... 400kg/400L ,800kg/800L ,1000kg/1000L,950kg/926L Quality standard : Purity, %≥99.8Moisture, PPm≤10Acidity, PPm≤0.1Vapor Residue, PPm≤100AppearanceColorless, No ... ; Recyclable cylinder 400L, 800L, 926L, 1000L; ISO-Tank. R22 refrigerant with 99.8% purity