2,4,4’-Tribromodiphenyl ether, 50µg/ml in IO, 1ml

Calibration Mixtures: Di-n-butyl sulfide in Isooctane Unit: 1x10mL screw-capped bottle Isooctane µgS/g (ppm) Wt.% S-4050-0-10IO 0 Blank 0 S-4050-1-10IO 1 0.0001 Etc. S-4050-10Kit Kit of above solutions

Formaldehyde-DNPH Level 2 (0.5ug/mL)

Pesticide-Mix 71, 10µg/ml in Cyclohexane, 10ml