sae standards Flashcards
J639
safety standard for motor vehicles refrigerant vapor comrpession systems, including unique fittings and a high pressure system warning label for R744, R152a
J2845
technician training for safe service and containment of refrigerants used in mvac systems
J 1991
standard of purity for use in mvac systems
J2099
standard of purity for recycled r134a and 1234yf for use in mvac systems
J2211
recommended service procedures for the containment of r134a
J2064
R134a refrigerant automotive air conditioning hose, standard covers hose and hose assemblies intended for 134a. hose must minimize permeation, contamination, and be functional within temprange of -22F to 257
J1990
recovery and recycle equipment for mvac systems (equipmemt must be certified by an EPA approved independent standards testing organization [UL or ETL] tp extract and recycle refrigerant from a motor vehicle taking CFC12)
J2209
CFC12 (R12) refrigerant recovery equipment for mvac systems
J2788
134a recovery/recycle/recharging equipment for mvac systems (passed in october 2006, seta recharge accuracy standard of .5oz and requires 95% recovery of refrigerant from an mvac system)
J2810
134a refrigerant recovery equipment for mvac systems (recover only equipment)
J2843
1234yf recovery/recycling/recharging equipment for flamable refrigerants for mvac systems
J2851
1234yf refrigerant recovery for mvac systems
J1628
technician procedure for using electronic refrigerant leak detectors for service of mvac systems
J2298
Ultraviolt leak detection: procedure for use of refrigerant leak detection dyes for service of mvac systems
J2776
Refrigerant puriy and container requirements for new 134a used in mvac systems
J2683
refrigerant purity and container requirement for carbon dioxide (r744) used in mvac systems. systems must forsee leaks into passenger compartment and not allow concentrations greater than 35 for 15mins (J639)
AHRI standard 700
Specification for fluorocarbon refrigerants
J2842
r1234yf and r744 design criteria and certification for oem mobile air conditioning evaporator and service replacements
J2296
retest of refrigerant container
J2197
134a service hose fittings for automotive air conditioning service equipmentJ
J2670
Stability and compatibility criteria for additives and flushing materials intended for use in vehicle air conditioning systems using 134a
J2791
134a refrigerant electronic leak detectors, minimum performance criteria134 cant leak into vehical compartment more than .5% tested in 15secs
J2297
Ultraviolet leak detection: stability and compatibility criteria for fluorescent refrigerant leak detection dyes for mobile 134a air conditioning systems
J2912
1234yf refrigerant identification equipment for use with mobile air conditioning systems
J2913
1234yf refrigerant electronic leak detectors, minimum performance criteria
J1627
Preformance criteria for electronic refrigerant leak detectors
J2299
Ultraviolet leak detection: performance requirements for florescent refrigerant leak detection dye injection equipment for aftermarket service of mobile air conditioning systems
J3030
Automotive refrigerant recovery/recycling/recharging equipment intended for use with both R134a and R12324yf
GWP 134a
1,300
R 744
fuel efficient, can increase cooling performace/7-10 times the pressure of 134a
GWP r152a
120-140 ( uses 7% to 22% less energy to produce same cooling as 134a, flammable) systems do not allow leaks into passanger compartment in concentrations of 3.7% or above for more than 15secs
GWP 1234yf
4
recovery cylinders
at least 2 ports ( liquid/vapor) must not be filled above 80% of capacity by weight (mechanical float devices, electronic shut off, weight) before filling cylinders must be evacuated to at least 28 in hg of vacuum, must be UL or DOT approved, date stamped every 5 years
recovering refrigerant
connect recovery equipment to vehicle service ports, recover until system has been reduced from a pressure to a vacuum. With unit shut off wait at least 5mins to determine if all refrigerant has been removed. repeat if needed until vacuum remains stable for 2mins
manifold gauge set
Hoses must have shut off valves within 12in of service ends. after charging, hoses must be connected to recovery equipment to recover hoses.
recharging equipment without device purging non condensables
container must be stored at 65F+ for 12hr out of direct sunlight, determine container pressure, measure air temperature within 4in of container surface, compare to see if container exceeds pressure limits
after opening systems
should always leak test, system should hold deep vacuum (27hg or more) for at least 1min before charging can also pressurize system with nitrogen then pinpoint leaks with soapy water, never pressurize with compressed air
1kg
2.2lbs
tech safety
always wear gloves, glasses and follow all equipment manufacturers safety procedures. inhaling refrigerant can cause heart irregularities, unconsciousness, and oxygen deprivation
when was 134a banned in new light duty vehicles
july 20, 2015, starting 2021
