CCT Safety Standards & Regulatory Compliance 5

Question 1

Under EPA Section 608, which activity requires EPA-certified technicians even when no refrigerant is expected to be released?

Accepted Answer

Attaching manifold gauges to a system containing a regulated refrigerant

Answer

Replacing a thermostat on a split-system air conditioner

Answer

Changing a fan motor on a condenser unit with the refrigerant isolated

Answer

Cleaning condenser coil fins with a pressure washer

Question 2

Which standard establishes refrigerant concentration limits in occupied spaces to protect against asphyxiation and toxicity?

Accepted Answer

ASHRAE Standard 34

Answer

ASHRAE Standard 15

Answer

NFPA 70E

Answer

OSHA 29 CFR 1910.94

Question 3

A technician working in a confined space must perform an atmospheric test before entry. Which gases must be checked at minimum?

Accepted Answer

Oxygen level, flammable gases, and toxic contaminants

Answer

Carbon dioxide and refrigerant concentration only

Answer

Nitrogen and carbon monoxide only

Answer

Temperature and humidity levels only

Question 4

Which organization administers the EPA Section 608 technician certification examinations through approved testing organizations?

Accepted Answer

The U.S. Environmental Protection Agency (EPA)

Answer

OSHA directly

Answer

ASHRAE certification board

Answer

The Department of Energy (DOE)

Question 5

When disposing of a small appliance such as a household refrigerator, which EPA Section 608 rule applies?

Accepted Answer

Refrigerant must be recovered by a certified technician or the appliance must go to an approved recycler

Answer

Small appliances under 5 pounds of charge are exempt from all recovery requirements

Answer

The homeowner may vent the refrigerant if done outdoors in a well-ventilated area

Answer

Recovery is only required if the refrigerant is a CFC; HFCs may be vented from small appliances

Question 6

What is the key difference between refrigerant 'recovery,' 'recycling,' and 'reclaiming' as defined by EPA Section 608?

Accepted Answer

Recovery removes refrigerant from equipment; recycling cleans it on-site for reuse; reclaiming restores it to ARI 700 purity standards at a certified facility

Answer

Recovery and recycling are identical processes; reclaiming is done on-site

Answer

Reclaiming simply means reusing refrigerant in the same equipment it was removed from

Answer

Recycling requires sending refrigerant to an EPA facility; recovery and reclaiming are field processes

Question 7

Which labeling requirement applies to refrigerant cylinders used for refrigerant recovery under DOT regulations?

Accepted Answer

Cylinders must be labeled with refrigerant type, DOT specification, hydrostatic test date, and working pressure

Answer

Only the refrigerant type needs to be labeled on recovery cylinders

Answer

Recovery cylinders are exempt from DOT labeling since they are for temporary storage only

Answer

Cylinders must show only the gross weight and the technician's certification number