After a piercing access valve is installed and opened, you must ensure that the system pressure is greater than _______ before beginning the recovery procedure.

Temperature/pressure chart is used for which of the following?

When you recover refrigerant from small appliances with inoperative compressors, the recovering unit must be connected to _______.

Which of the following techniques is effective when recovering refrigerant into a non-pressurized container from a refrigerator with an inoperative compressor? Select all that apply.

All appliances must have a service aperture valve for which of the following?

Non-condensables in a refrigeration system results in ______.

After the recovery is complete, it is important to remove solderless piercing valves because _____.

Which of the following refrigerants can be mixed in recovery cylinder?