A. According to the standard:
JB/T5239.4-2011; QC/T 772-2XXX; GB/T 5923-2010; QC/T918-2013
B. Test items:
a. Spin-on filter
b. Diesel filter cleanliness test
c. Diesel filter raw resistance (flow resistance) test
d. Gasoline filter test piece test interface, need to connect the hose by first party
e. Gasoline filter cleanliness test
f. Gasoline filter pressure drop - flow characteristic curve