EPA Method 8270C Mix #27 Back Catalog number: 91006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11971.44-K-ME Hydroxyzine pamoate,1000 µg base/mL,MeOH,1mL Price on request 674493 PSA-C18-Mix 4 Price on request 50652 200.8Low Intermediate Standard - Parent Price on request