f 20 h wherein j is as defined in lubricant d lubricant l hch 2 c 8 f 16 c 2 h 4 g wherein g is as defined in lubricant a lubricant m f c 3 f 6 o 5 c 2 f 4 2 gt nnh c 2 f 4 oc 3 f 6 5 f lubricant n f cf cf 3 cf 2 o r cf 2 2 gt nnh cf 2 ocf 2 cf cf 3 r f lubricant o c 9 f 19 c 2 h 4 2 gt nnh c 2 h 4 c 9 f 19 lubricant p hch 2 c 8 f 16 c 2 h 4 2 gt nnh c 2 h 4 c 8 f 16 ch 3 lubricant q f cf cf 3 cf 2 o 9 cf 2 jc 17 h 35 wherein j is as defined in lubricant d lubricant r f c 3 f 6 o 10 c 2 f 4 jc 8 h 17 wherein j is as defined in lubricant d lubricant s c 9 f 19 j c 17 h 35 wherein j is as defined in lubricant d lubricant t hc 10 f 20 j c 17 h 35 wherein j is as defined in lubricant d lubricant u f c 3 f 6 o 5 c 2 f 4 2 gt nnh c 8 h 17 lubricant v f cf cf 3 cf 2 o r cf 2 2 gt nnh c 8 h 17 str5 the css test.