Trihalomethane Standard Back Catalog number: 93902 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94002 Naphthalene Price on request 92535 2-Chloronaphthalene Price on request H0931 4-Hydroxy-1-(2-hydroxyethyl)-2,2,6,6-tetramethylpiperidine Price on request