BTEX Standard Back Catalog number: 92712 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675776 Nitrothal-isopropyl, 100 µg/ml, Ethyl acetate, 5 Price on request S-4394-ASS-NN S-4394 B[a]P/HCB Recovery Standard (solvent - Nonane) Product Concentration 2,3,3',5,5'-PeCB 100 µg/mL Price on request 676730 4,4'-Diamino-3,3'-dimethyldiphenylmethane, 100mg Price on request