EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L14030000WA Glufosinate ammonium, 10µg/mL in Water, 10ml Price on request L20012600IO PCB No. 126, 10µg/ml in Isooctane, 10ml Price on request 679355 Dipentyl phthalate, 250mg Price on request