EPA Method 8330 Analyte Back Catalog number: 79073 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9041 4-Chloro-3-methylphenol Price on request 82534 EPA Method 8270C - B/N Matrix Spiking Solution Price on request 8484.15-50MG Metoprolol (free base),neat,neat,50mg, Price on request