EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4724-100-NNX10 Mix of deuterated PCBs (28,52,101), 100µg/ml in Nonane, 10 x 1ml Price on request 677531 Oxybenzone, 250mg Price on request D4911 trans-4'-(3,4-Difluorophenyl)bicyclohexyl-4-one, >98%, 1g Price on request