4-Methylpyridine,neat,neat,100mg

PCB No. 104, 100µg/ml in Isooctane, 1ml

EPA 528 rev. 1.0 Sample Fortification Solution 1 100µg/mL in methanol; unit: 1x5mL 2420.6 2-Chlorophenol-3,4,5,6-d4 [93951-73-6]

EPA Method 502.2 Surrogate Standard