pH 4.0 Standard @ 25°C Back Catalog number: 59468 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681365 Carbamazepine, 100mg Price on request 673293 Fluazifop, 100 µg/ml, Acetonitrile, 5ml Price on request PCB-ST-A Native PCB Stock Solution , 1.2ml , nonane Price on request