Refrigerant System Charge: Notes
After all A/C refrigerant system repairs have been completed and the refrigerant system has been evacuated, the A/C system can be recharged with R-134a refrigerant.
When charging the A/C system, use an R-134a refrigerant recovery/recycling/charging station (1) that meets SAE standard J2788. Per SAE standard J2788, refrigerant recovery stations must charge the system to an accuracy of 14 grams (0.5 oz.). See the operating instructions supplied by the equipment manufacturer for proper care and use of this equipment.