Copper AA Standard (Cu) Back Catalog number: 50462 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673483 Bitertanol, 100 µg/ml, Ethyl acetate, 5ml Price on request 52040 Interference Standard Mix 2 Price on request 11232.10-10MG Acid Yellow 1,neat,neat,10mg, Price on request