The reduction of ozone in the stratosphere could cause

R-134a refrigerant must be recycled to meet which of these purity standards?

If the required charge level of refrigerant for and MVAC system is 40 ounces, which of these is the correct charge level measured in pounds?

Technician A says that recovery/recycling/recharging equipment for R-1234yf refrigerant requires integration with a refrigerant identifier.

Technician B says that Recovery/recycling/recharging equipment for R-1234yf refrigerant uses a 17mm O.D. quick coupler on the low-side service hose.

Which of these identifies a cylinder of R-1234yf refrigerant?

A container of recycled R-134a refrigerant that is being tested for non-condensable gases (air) should be

The EPA allows the use of R-134a recovery-only equipment provided that the

Technician A says that it is ok to use disposable refrigerant tank to store recycled refrigerant.

Technician B says that it is ok to fill and approved refrigerant tank to 70 0/0 of its gross weight rating

Before a container of stored recycled refrigerant is used, the container must be checked for:

Recovery equipment for R-134a refrigerant must meet standards set by

Technician A says R-744 refrigerant is accepted by the EPA as an alternative for retrofit

Technician B says R-134a refrigerant is accepted by the EPA as an alternative for retrofit

Who is right?

Alternative refrigerant use a unique set of service fittings that:

SAE standard J2099 specifies that the maximum level of non-condensable gases in recycled

R-134a should not exceed

When service equipment hoses with manual shutoff valves are not connected to and A/C system, the valves should be in the:

Technician A says that R-1234yf may be used to retrofit an R-134a system

Technician B says that R-1234yf is an ozone-depleting gas

Who is right?

A technician who successfully completes the training and certification in and EPA-approved Section 609 program can legally service MVAC systems that use any of these refrigerants EXCEPT:

1. Electronic leak detectors for R-1234yf should meet:

Technician servicing an MVAC system should do any of these EXCEPT:

Requirements for recovery/recycling/recharging equipment for r-1234yf refrigerant are set by SAE standard:

R1234yf refrigerant has a global warming potential (GWP) of:

R-1234yf is a preferred refrigerant over R-134a because:

1. Technician A says that SAE standard J639 spells out details for system design, implementation, and service.

Technician B says that SAE standard J639 specifies refrigerant fitting types and sizes for each refrigerant.

Who is right?

Servicing MVAC system on hybrid and electric vehicles requires

Technician A says that anyone servicing MVAC systems for hire must be trained and certified.

Technician B says that each piece of refrigerant handling equipment that is use to service motor vehicle air conditioners must be approved

Which of these is a flammable refrigerant, unacceptable under SNAP as a substitute for CFC-12?

Empty disposable R-134a refrigerant containers should be:

To remove refrigerant in any condition from a system and store it in an approved external container

To clean refrigerant for reuse by separating the oil and removing moisture by passing it through one or more filter driers

EPA approved the use of 2 types of equipment

UL first certified recovery/recycling equipment in...

If a facility changes ownership, the new owner must...

J2788...