EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended KBIO-EBG-5ML ß-glucuronidase recombinant Escherichia coli Price on request 50585 pH 1.0 Standard @ 25°C Price on request 679265 Methylparaben, 100mg Price on request