1, purity. 99.9% 2. ODP.0 3. GWP,100yr. 1200 4, high quality reasonable price 5, large production Refrigerant R23 Property of ... ,°C -152.15 PackingRecyclable steel cylinder 40L, 500L Quality standard : Purity, %≥99.5Moisture, PPm≤20Acidity, PPm≤1Vapor Residue, PPm≤100AppearanceColorless and clearOdorOdorless ...