Nitrogen Set for ASTM D6366: N @ 10, 25, 50, 75, 100 ng/μL in Isooctane, set(2) Back Catalog number: VHG-NCED-SET2 Availability: In the manufacturer's stock Price on request - + Recommended 3722.18-100MG Dodecylbenzenesulfonic acid, mixture of linear C10-13, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 27176-87-0 Price on request 674916 18O4-Sodium perchlorate, 5mg Price on request 55191 SDWA Anions Price on request