Core Flashcards
What is ozone?
- Blueish in color pungent odor
- consists of three atoms. O3
What is smog?
Ozone at ground level which is a harmful pollutant. In stratosphere it is a protective shield.
What are some affects of the thinning of the ozone layer?
Skin cancer,cataracts,damage to crops and sea life,degradation of polymers and climate change.
What are CFC?
Chlorofluorocarbons
R11 & R12
Can no longer buy
Very bad for ozone
What are HCFC?
Hydroflorocarbons
R22
Bad for ozone
Phasing out
What are HFC?
Hydroflorocarbon
R143A
No ODP
No phasing out
What is ASHRAE 34-1988
-Safety Group Classification
- (A) non toxic (B) toxic
- (1) non flammable
(2) slightly flammable
(3) highly flammable
November 15,1993?
EPA requires equipment manufactured on or after this date be tested by an EPA approved testing organization for recycling and recovery equipment.must be tested under ARI-740
January 1,1992?
Mandatory certified recovery equipment when servicing automotive.
July 1,1992?
Clean air act phase out of CFC&HCFC. Prohibits venting of both.
July 13,1993?
Every company needs at least 1 recovery machine.
November 15,1993?
- recovery device need low loss fittings.
- recovery equipment manufactured after this date must be certified by an EPA approved lab
November 14,1994?
Techs must be certified in refrigerant recovery.sale of refrigerant has been restricted to certified techs
December 31,1995?
CFC no longer manufactured.can only come from recycling,recovery,reclaiming.
November 15,1994?
No cent of CFC,HFC,HCFC. All are ODO
