EPA Method 504 - EDB & DBCP Back Catalog number: 19229 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4569-8K-ET EN 15721 Internal Standard Stock Solution, procedure B 1382.2 Ethanol 16mL 8919.5 4-Methyl-2-pentanol 160µL Gives a concentration of approx. 8mg/mL Price on request A172062-5MG Acetylcholine-d9 Chloride, 5mg Price on request 683534 alpha,alpha,2,6-Tetrachlorotoluene, 1000mg Price on request