TPH Gas Standard Back Catalog number: 92573 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3380.19-100-AN Diflufenican Price on request DFP-SS-A10 Mass-Labelled PCDD & PCB Sampling Spike Solution, 1.2ml, nonane Price on request 11673.12-100-IO 2,3,4-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request