pH 6.0 Standard @ 25°C

Di-n-heptyldiethyltin, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 165900-80-1

Guaiazulene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 489-84-9

Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1