Heptachlor-endo-epoxide (trans-, isomer A), certified, 10mg

2-Butanone-2,4-DNPH, 100mg

Cholesterol, 250mg

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