1.N.W:300g,340g,500g,1000g,etc 2.Purity: not less than ... UISZL/OEM 4.DOT, CE certification R134a Refrigerant Gas used in auto air-conditioner Auto Refrigerants R134a Purity, %≥99.9Moisture, PPm≤10Acidity, ... Residue, PPm ≤100AppearanceColorless, No turbidOdorNo Strange StenchPackingtwo pieces can, three pieces canNet weight200g-1000gUsageAuto refirgerants R22 R134a Refrigerant Gas in can used in AC