Catching up and posting my results from past year for the record, in case you'd like to compare:

2008..

ASM2525 Test
(test / limit / reading / result)
HC ppm: 57 28 PASS
CO %: 0.32 0.06 PASS
NO ppm: 421 30 PASS
RPM: 776 VALID
DILUTION: 15 VALID

CURB IDLE TEST:
(test / limit / reading / result)
HC ppm: 200 30 PASS
CO %: 1.00 0.07 PASS
NO ppm: n/a n/a n/a
RPM: 453 VALID
DILUTION: 15 VALID