EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 40059 EPA Method 645 Analytes Price on request 95406 Aroclor 1254 & Tetrachloro-m-xylene Price on request 10378.20-10MG EDDP perchlorate,neat,neat,10mg, Price on request