EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10613.38-10UG Tribenzo[de,h,kl]naphtho[1,2,3,4-rst]pentaphene Price on request 59104 Sulphate (SO42-) Price on request 71066 Thianaphthene Price on request