Chemical Oxygen Demand Back Catalog number: 59447 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681070 Ketoprofen, 100 µg/ml, Methanol, 1ml Price on request S-4606-50-10PE ISO 9377-2Mod Standard Mixture of n-Alkanes + BTEX I S-4423-50-5PE C7+C10+ C20+C40+BTEX (without p-Xylene) in n-Pentane Determination of Hydrocarbon Oil in Water Index 9 Analytes; each 50µg/mL in n-pentane; units: 1x1mL, 1x5mL, 10x1mL Benzene Price on request R070240 Azoxystrobin Impurity, 10mg Price on request