Refrigerant Safety Quiz

Which of the following human health effects could result from an increase in ultraviolet radiation?

• an increase in cataracts cases

• an increase in male infertility cases

• an increase in heat prostration with the elderly

• an increase in the number of thyroid disorders

Never use an open flame to heat a refrigerant tank because:

• it can result in venting refrigerant to the atmosphere.

• the tank may explode, causing serious injury to people nearby.

• refrigerant in the tank may decompose, forming a toxic material.

• all of the above.

When transporting cylinders containing used refrigerant, the DOT requires that you:

• use OSHA-approved containers.

• attach DOT classification tags.

• ship by EPA certified carrier.

• do all of the above.

According to ASHRAE's 1992 refrigerant safety classification, which of the following designations would be the most safe?

• A-1

• A-3

• B-1

• B-3

The over-evacuation of a system:

• can cause tube, condenser and/or evaporator collapse.

• damages vacuum gauge sets.

• causes vacuum pump damage.

• does not occur.

Equipment covered by EPA regulations include:

• only refrigerators and freezers using CFC's.

• only air-conditioning and refrigeration equipment containing and using HCFC refrigerants.

• all air-conditioning and refrigeration equipment using CFC, HCFC or HFC refrigerants.

• only commercial air-conditioning and refrigeration equipment made in the USA.

Never overfill refrigerant storage cylinders because:

• the cylinder may be too heavy to carry.

• the internal pressure of the cylinders may rise in heated areas and cause an explosion.

• some refrigerant may be vented as the cylinder valve is closed.

• the extra space in the cylinder might be needed for the next job.

It is important not to mix different refrigerants in the same container because:

• the mixture may be impossible to reclaim.

• the mixture will explode.

• the refrigerant mixture might be toxic.

• it violates EPA environmental regulations.

Manifold gauge sets are often color coded, when this is done, the low pressure gauge is color coded:

• red.

• white.

• blue.

• yellow.

All devices used for refrigerant recovery must:

• be portable and weigh less than 100 pounds.

• contain a heavy-duty ozone shield.

• have a 5 Ton-refrigeration rating at 100F.

• meet EPA standards.