D4-Propyl paraben, 100 µg/ml, Methanol, 1ml

1,1-Dichloropropene,1000 µg/mL,MeOH,1mL,

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K

2,4,5,6-Tetrachloro-m-xylene, 10µg/mL in Cyclohexane, 10ml