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Product code: MX-11331
Calibration Standard for HI 721 Checker HC ®
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HI721-11 is a high-quality set of calibration standards that allows users to validate the Iron Checker® HC - HI721. The HI721-11 includes one sealed cuvette for zero ppm iron and one single-use standard cuvette that becomes tinted to an equivalent 1.00 +/- 0.06 ppm iron sample @ 25°C when the supplied reagent is added. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.

Hanna
MX-11176
HI9829-14/15 is for premium quality 10 ppm and 100 ppm (mg/L) Nitrate (as N) calibration standards. It is produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with…