The panel a section diagram marks R 1 to R 10 and C 1 to C 3 beside a deposition hole. The adjacent plot gives angle around deposition hole in degrees and height in deposition hole in centimetres. Markers form paths near 0 degrees to 270 degrees and about 170 centimetres to 410 centimetres. Panel b repeats the section diagram and plot, with markers from 0 degrees to about 135 degrees and about 355 centimetres to 415 centimetres.
Schematic diagram of the direction of gas flow during gas testing in upper filter FU910: (a) flow in Gas Test 3; (b) flow in Gas Test 5