Sample

Room temperature condition

API filter loss/ml

High temperature condition

HTHP filter loss/ml

blank

Place 24 h at room temperature

220

220˚C/16 h

150

XR-1

Place 24 h at room temperature

7.0

220˚C/16 h

9.3

XR-2

Place 24 h at room temperature

7.8

220˚C/16 h

9.4

XR-3

Place 24 h at room temperature

7.0

220˚C/16 h

9.9

XR-4

Place 24 h at room temperature

7.2

220˚C/16 h

9.5