EPA 608 Certification, EPA 608 Questions
and Answers 100% Solved
Polyolester What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will
also work with CFC's and HCFC's.
Trillion HCFC's have very low atmospheric concentrations measured in parts per?
15% All cooling systems containing more than 50 lbs. of refrigerant must be repaired
when the annual leak rate exceeds___?
All CFC's Mineral Oils are used with?
HCFC's (Will also work with CFC's) Alkebenzene is used alone or as an additive for?
Polyolester POE
,A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5 lbs.
of refrigerant or less. What is the definition of a Type I Appliance?
High pressure or very high pressure appliances except for small appliances and motor vehicle air
conditioning. Refrigeration systems containing more than 5 Lbs. of high or very high pressure
refrigerants. What is the definition of a Type II Appliance?
Low pressure equipment like low pressure chillers. What is the definition of a Type III
Appliance?
1-399 and 600 and above. All refrigerants are assumed to be a single chemical if they are
numbered what?
A mixture of two or more liquids in such a ratio that it's composition cannot be changed by
vaporizing it. What is an Azeotrope?
500 to 599 Azeotrope's are numbered what?
,When the refrigerant leaks, it leaks out in different rates due to the different pressures.
What is fractionation?
When the temperature of the vaporizing refrigerant changes, even though the pressure remains
the same. What is Temperature Glide?
Self-Contained and System-Dependent. What are the two basic types of recovery devices?
15 Lbs of refrigerant or less System-Dependent devices may only be used on appliances
containing how much refrigerant?
A refrigerant label. What MUST be placed on a refrigerant cylinder being returned for
reclaiming.
Trapping liquid refrigerant between the service valves. After completing the transfer of
liquid refrigerant between a recovery unit and a refrigeration system, you should guard against
what?
, Charge through a pressure regulator. When pressurizing a system with nitrogen, you
should always?
Recover, Recycle, and Reclaim. What are the three "R's"?
To remove refrigerant in any condition from a system and store it in an external approved
container. In relation to the three "R's" what is Recover?
To clean refrigerant for reuse by seperating the oil from the refrigerant and removing moisture
from the refrigerant by passing it through one or more filter dryers. In relation to the three
"R's" what is Recycle?
It cannot be re-sold but it can be re-used. Can Recycled refrigerant be resold?
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis. In relation to the three "R's" what is Reclaim?
Yes, but must meet the standard set forth in ARI 700 before it can be resold. Can
Reclaimed refrigerant be resold?
and Answers 100% Solved
Polyolester What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will
also work with CFC's and HCFC's.
Trillion HCFC's have very low atmospheric concentrations measured in parts per?
15% All cooling systems containing more than 50 lbs. of refrigerant must be repaired
when the annual leak rate exceeds___?
All CFC's Mineral Oils are used with?
HCFC's (Will also work with CFC's) Alkebenzene is used alone or as an additive for?
Polyolester POE
,A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5 lbs.
of refrigerant or less. What is the definition of a Type I Appliance?
High pressure or very high pressure appliances except for small appliances and motor vehicle air
conditioning. Refrigeration systems containing more than 5 Lbs. of high or very high pressure
refrigerants. What is the definition of a Type II Appliance?
Low pressure equipment like low pressure chillers. What is the definition of a Type III
Appliance?
1-399 and 600 and above. All refrigerants are assumed to be a single chemical if they are
numbered what?
A mixture of two or more liquids in such a ratio that it's composition cannot be changed by
vaporizing it. What is an Azeotrope?
500 to 599 Azeotrope's are numbered what?
,When the refrigerant leaks, it leaks out in different rates due to the different pressures.
What is fractionation?
When the temperature of the vaporizing refrigerant changes, even though the pressure remains
the same. What is Temperature Glide?
Self-Contained and System-Dependent. What are the two basic types of recovery devices?
15 Lbs of refrigerant or less System-Dependent devices may only be used on appliances
containing how much refrigerant?
A refrigerant label. What MUST be placed on a refrigerant cylinder being returned for
reclaiming.
Trapping liquid refrigerant between the service valves. After completing the transfer of
liquid refrigerant between a recovery unit and a refrigeration system, you should guard against
what?
, Charge through a pressure regulator. When pressurizing a system with nitrogen, you
should always?
Recover, Recycle, and Reclaim. What are the three "R's"?
To remove refrigerant in any condition from a system and store it in an external approved
container. In relation to the three "R's" what is Recover?
To clean refrigerant for reuse by seperating the oil from the refrigerant and removing moisture
from the refrigerant by passing it through one or more filter dryers. In relation to the three
"R's" what is Recycle?
It cannot be re-sold but it can be re-used. Can Recycled refrigerant be resold?
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis. In relation to the three "R's" what is Reclaim?
Yes, but must meet the standard set forth in ARI 700 before it can be resold. Can
Reclaimed refrigerant be resold?
