EPA 609 ALL 2026 TESTED QUESTIONS AND
ANSWERS SURE A+
✔✔What is cross contamination in MVAC systems ? - ✔✔Having refrigerant other than
the type designated on the system information label
✔✔How often should refrigerant handling equipment be calibrated ? - ✔✔According to
manufacturer's specifications
✔✔What percentage of its gross weight capacity should a refrigerant storage tank never
exceed ? - ✔✔60 %
✔✔When checking for evaporator leaks using an electronic detector , how long should
you wait after turning off the blower ? - ✔✔13 minutes
✔✔What is the proper procedure if contaminated refrigerant is detected ? - ✔✔Dispose
of it properly through EPA - certified facilities
✔✔Which document contains essential safety information about refrigerants ? -
✔✔Safety Data Sheet ( SDS )
, ✔✔What is the minimum vacuum level required for R - 1234yf systems before
recharging ? - ✔✔0.011 MPa A ( 3.32 in . Hg absolute )
✔✔How should refrigerant cylinders be stored ? - ✔✔Below 52 degrees C ( 125
degrees F )
✔✔What percentage of the total charge does a R - 1234yf system receive initially during
automated charging ? - ✔✔15 %
✔✔What is the proper procedure if a leak is detected during system charging ? -
✔✔Locate and repair the leak before continuing
✔✔Which standard applies to R - 1234yf recovery / recycling / recharging equipment ? -
✔✔SAE J2843
✔✔What should be done with disposable refrigerant containers that appear empty ? -
✔✔Remove remaining refrigerant before disposal
✔✔What is required on the label after retrofitting a system to use a different refrigerant
? - ✔✔Name and address of technician and company , date , refrigerant type , and
lubricant information
✔✔A technician must be certified to perform all of the following A / C system services
EXCEPT : - ✔✔Check compressor clutch operation
✔✔A refrigerant recovery and recycling station must have a label saying it is: - ✔✔UL -
approved
✔✔Refrigerant recycling equipment use and maintenance guidelines are defined in SAE
Standard : - ✔✔J1990
✔✔What color is a new container of R - 134a ? - ✔✔Blue
✔✔A container that may be used for recycled R - 12 is stamped : - ✔✔DOT4BW
✔✔Before use , a container of recycled refrigerant must be tested for : - ✔✔Non-
condensable gases
✔✔Before testing recycled refrigerant , store the container in a warm location out of the
sunlight for at least : - ✔✔12 hours
✔✔When recycling refrigerant , run the recycling pump : - ✔✔Until the moisture
indicator shows standards are met
ANSWERS SURE A+
✔✔What is cross contamination in MVAC systems ? - ✔✔Having refrigerant other than
the type designated on the system information label
✔✔How often should refrigerant handling equipment be calibrated ? - ✔✔According to
manufacturer's specifications
✔✔What percentage of its gross weight capacity should a refrigerant storage tank never
exceed ? - ✔✔60 %
✔✔When checking for evaporator leaks using an electronic detector , how long should
you wait after turning off the blower ? - ✔✔13 minutes
✔✔What is the proper procedure if contaminated refrigerant is detected ? - ✔✔Dispose
of it properly through EPA - certified facilities
✔✔Which document contains essential safety information about refrigerants ? -
✔✔Safety Data Sheet ( SDS )
, ✔✔What is the minimum vacuum level required for R - 1234yf systems before
recharging ? - ✔✔0.011 MPa A ( 3.32 in . Hg absolute )
✔✔How should refrigerant cylinders be stored ? - ✔✔Below 52 degrees C ( 125
degrees F )
✔✔What percentage of the total charge does a R - 1234yf system receive initially during
automated charging ? - ✔✔15 %
✔✔What is the proper procedure if a leak is detected during system charging ? -
✔✔Locate and repair the leak before continuing
✔✔Which standard applies to R - 1234yf recovery / recycling / recharging equipment ? -
✔✔SAE J2843
✔✔What should be done with disposable refrigerant containers that appear empty ? -
✔✔Remove remaining refrigerant before disposal
✔✔What is required on the label after retrofitting a system to use a different refrigerant
? - ✔✔Name and address of technician and company , date , refrigerant type , and
lubricant information
✔✔A technician must be certified to perform all of the following A / C system services
EXCEPT : - ✔✔Check compressor clutch operation
✔✔A refrigerant recovery and recycling station must have a label saying it is: - ✔✔UL -
approved
✔✔Refrigerant recycling equipment use and maintenance guidelines are defined in SAE
Standard : - ✔✔J1990
✔✔What color is a new container of R - 134a ? - ✔✔Blue
✔✔A container that may be used for recycled R - 12 is stamped : - ✔✔DOT4BW
✔✔Before use , a container of recycled refrigerant must be tested for : - ✔✔Non-
condensable gases
✔✔Before testing recycled refrigerant , store the container in a warm location out of the
sunlight for at least : - ✔✔12 hours
✔✔When recycling refrigerant , run the recycling pump : - ✔✔Until the moisture
indicator shows standards are met
