sae standards

Question 1

J639

Answer 1

safety standard for motor vehicles refrigerant vapor comrpession systems, including unique fittings and a high pressure system warning label for R744, R152a

Question 2

J2845

Answer 2

technician training for safe service and containment of refrigerants used in mvac systems

Question 3

J 1991

Answer 3

standard of purity for use in mvac systems

Question 4

J2099

Answer 4

standard of purity for recycled r134a and 1234yf for use in mvac systems

Question 5

J2211

Answer 5

recommended service procedures for the containment of r134a

Question 6

J2064

Answer 6

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

Question 7

J1990

Answer 7

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)

Question 8

J2209

Answer 8

CFC12 (R12) refrigerant recovery equipment for mvac systems

Question 9

J2788

Answer 9

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)

Question 10

J2810

Answer 10

134a refrigerant recovery equipment for mvac systems (recover only equipment)

Question 11

J2843

Answer 11

1234yf recovery/recycling/recharging equipment for flamable refrigerants for mvac systems

Question 12

J2851

Answer 12

1234yf refrigerant recovery for mvac systems

Question 13

J1628

Answer 13

technician procedure for using electronic refrigerant leak detectors for service of mvac systems

Question 14

J2298

Answer 14

Ultraviolt leak detection: procedure for use of refrigerant leak detection dyes for service of mvac systems

Question 15

J2776

Answer 15

Refrigerant puriy and container requirements for new 134a used in mvac systems

Question 16

J2683

Answer 16

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)

Question 17

AHRI standard 700

Answer 17

Specification for fluorocarbon refrigerants

Question 18

J2842

Answer 18

r1234yf and r744 design criteria and certification for oem mobile air conditioning evaporator and service replacements

Question 19

J2296

Answer 19

retest of refrigerant container

Question 20

J2197

Answer 20

134a service hose fittings for automotive air conditioning service equipmentJ

Question 21

J2670

Answer 21

Stability and compatibility criteria for additives and flushing materials intended for use in vehicle air conditioning systems using 134a

Question 22

J2791

Answer 22

134a refrigerant electronic leak detectors, minimum performance criteria134 cant leak into vehical compartment more than .5% tested in 15secs

Question 23

J2297

Answer 23

Ultraviolet leak detection: stability and compatibility criteria for fluorescent refrigerant leak detection dyes for mobile 134a air conditioning systems

Question 24

J2912

Answer 24

1234yf refrigerant identification equipment for use with mobile air conditioning systems

Question 25

J2913

Answer 25

1234yf refrigerant electronic leak detectors, minimum performance criteria

Question 26

J1627

Answer 26

Preformance criteria for electronic refrigerant leak detectors

Question 27

J2299

Answer 27

Ultraviolet leak detection: performance requirements for florescent refrigerant leak detection dye injection equipment for aftermarket service of mobile air conditioning systems

Question 28

J3030

Answer 28

Automotive refrigerant recovery/recycling/recharging equipment intended for use with both R134a and R12324yf

Question 29

GWP 134a

Answer 29

1,300

Question 30

R 744

Answer 30

fuel efficient, can increase cooling performace/7-10 times the pressure of 134a

Question 31

GWP r152a

Answer 31

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

Question 32

GWP 1234yf

Answer 32

4

Question 33

recovery cylinders

Answer 33

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

Question 34

recovering refrigerant

Answer 34

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

Question 35

manifold gauge set

Answer 35

Hoses must have shut off valves within 12in of service ends. after charging, hoses must be connected to recovery equipment to recover hoses.

Question 36

recharging equipment without device purging non condensables

Answer 36

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

Question 37

after opening systems

Answer 37

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

Question 38

1kg

Answer 38

2.2lbs

Question 39

tech safety

Answer 39

always wear gloves, glasses and follow all equipment manufacturers safety procedures. inhaling refrigerant can cause heart irregularities, unconsciousness, and oxygen deprivation

Question 40

when was 134a banned in new light duty vehicles

Answer 40

july 20, 2015, starting 2021