EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDHCH d-1,2,3,4,5,6-Hexachloro(13C6)cyclohexane, 1.2mL x 100ug/mL, nonane Price on request 55117 RCRA Volatile Solids Price on request 72417 Isovaleric acid Price on request