... .6kg, 50lb/22.7kg; Recyclable cylinder 400L, 800L, 926L, 1000L; ISO-Tank. Quality standard : Purity, %≥99.9Moisture, PPm≤10Acidity, PPm≤0 ... performance widely recognized in international community. 2.It does not container chlorine atom,will not destroy the ozone layer. 3.It ... such as medicine,pesticide,cosmetics and cleaning. gas refrigerant r134a - ISO TANK