For preparation of 0.5 ppm standard. CHEMetrics® hydrogen peroxide standard (A-5505) offers the analyst an easy method to confirm the accuracy and reliability of hydrogen peroxide measurements. Conveniently packaged in a cardboard box, each pack contains 10 ampoules, a tip breaking tool and a lot-specific Certificate of Analysis. To prepare the 0.5 ppm standard, simply dispense liquid from the double-tipped ampoule and dilute to 100 ml.The 0.5 ppm standard will remain stable for 24 hours in a closed flask that is stored in the dark at room temperature.

• Use to verify hydrogen peroxide kit reagent and instrument performance NIST Traceable Simple standard preparation using dispensing ampoules Stable, certified standard