EPA Method 525.2 - 526 Internal Standard Back Catalog number: 91297 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38025 WS Trihalomethanes Price on request S-4517-2K-10PE ISO 9377-2MOD Stearyl Stearate Test Solution 200mg Stearyl stearate in 100ml Extraction solvent standard solution (S-4516) Units: 1x10mL, 5x10mL, 10x10mL Price on request 94754 4,4’-Methylenedianiline Price on request