EPA Method 8330 Analyte Back Catalog number: 79074 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94338 BTEX - Indiana Price on request 9967.29-100-IO alpha alpha alpha (20R,24RS)-24-Ethylcholestane (82% in mixture with alpha alpha alpha (20S,24RS)-24-Ethylcholestane), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 54142 Alkalinity as Calcium Carbonate, 1000µg/ml in Water, 100ml Price on request