The quality standard of the noble metal catalyst which takes the cocoanut active charcoal as the car

The quality standard of the noble metal catalyst which takes the cocoanut active charcoal as the carrier (Protocol Standard)

Item 1: According to HG/T2271. 2-92;
Item 3: According to the nitrobenzene's hydrogen pick-up speed under the normal atmospheric temperature.
The 2, 5, 6 items: Test according to the GB/T12496.1-12496.22-90.
Item 4: Test according to the GB/T7702.21-1997.
Item 7 : Test according to the GB/T12496.18-90, delete the item 4.1 in operating sequence.
The 8, 9 items: Use the granulometer to determine the calculus percentage.