and 3 with solutions 2025
a vacum pump should be connected - ANSWER as far away from the pump as possible
a high capacity vacuum pump and short, large diameter hoses will - ANSWER dramatically
reduce emissions, pressure drop, and evacuation/dehydration time
ozone contains three - ANSWER oxygen atoms
one chlorine atom can destroy - ANSWER 100,000 ozone molecules
CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in
water - ANSWER CFC's cannot be washed out of the lower atmosphere
ODP - ANSWER ozone depletion potential
azeotrope - ANSWER where the mixture behaves like a single chemical (new refrigerant)
HFC's will not damage the ozone in the stratosphere - ANSWER ...
in 1992 the united states ordered the stoppage of all CFC production and importation after -
ANSWER December 31, 1995
according to the clean air act, no person installing, maintaining, repairing, or disposing of any
appliance may knowingly vent or otherwise release into the environment and class 1 or class 2
substance after - ANSWER July 1, 1992
, class 1 - ANSWER CFC
class 2 - ANSWER HCFC
it became illegal to vent substitutes for CFC and HCFC refridgerants on - ANSWER November 15,
1995
any device which contains and uses a class 1 or class 2 substance as a refridgerant and is used
for household or commercial purpose. - ANSWER appliance
self contained recovery equipment type - ANSWER Active
system dependent recovery equipment type - ANSWER Passive
only section 609 certified technicians may buy CFC-12 in containers smaller than 20 pounds -
ANSWER ...
who must ensure that all refridgerant has been recovered prior to disposal of any appliance -
ANSWER The final person in the disposal chain (scrap metal recycler, landfill owner, ect.)
the removal of refridgerant in any condition - ANSWER Recovery
to clean refridgerant by oil seperation, non-condensable removal and single or multiple passes
through replaceable filter-driers to reduce moisture, acidity and particulate matter - ANSWER
Recycling