California Gas Additive Standard Back Catalog number: 95326 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1596.16-10MG Pyrene-1-sulfonic acid sodium salt, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 59323-54-5 Price on request 98555 Formaldehyde (1 ppm) Price on request 0700.13-500-IO 1,2,3-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 879-12-9 Price on request