See page10.166 for Checker HC accessories HI726 Nickel High Range Handheld Colorimeter • Easier to use and more accurate than chemical test kits • Dedicated to a single parameter • Small size, big convenience • Ideal for: · Steel manufacturing · Electroplating and electronics production Nickel is extensively used in electroplating, the manufacturing of steel, electronic devices, ceramics and colored glasses. It plays a vital role in many processes of applied sciences and fundamental sciences. Nickel is seldom found in natural waters, but is often present in industrial wastewater as a direct by-product of metal plating baths, and as a corrosion by-product of stainless steel, nickel or cobalt alloys. The most serious eects of nickel exposure include lung cancer and other respiratory eects in people who have breathed nickel dust while working in nickel re¡neries or in nickel processing plants. Other lung eects including chronic bronchitis and reduced lung function have been observed in workers breathing nickel. The levels of nickel in the workplace were much higher than background levels. The International Agency for Research on Cancer (IARC) has determined that some nickel compounds are carcinogenic to humans and that metallic nickel may be carcinogenic to humans. The EPA has determined that nickel re¡nery dust and nickel subsul¡de are human carcinogens. The HI726 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent, shake gently until complete dissolution. Finally, place the vial into the Checker HC, press the button for 3 seconds. The display will show the countdown prior to the measurement. When the timer ends the meter will perform the reading and display concentration in g/L of nickel. It’s that easy. Specifications HI726 (HR) Range 0.00 to 7.00 g/L (ppt) (as Ni) Resolution 0.01 g/L Accuracy ±0.10 g/L ±5% of reading @ 25 °C (77 °F) Light Source Light Emitting Diode @ 575 nm Light Detector Silicon photocell Method Adaptation of the Photometric Method. The reaction between nickel and the reagent causes a blue tint in the sample. Environment 0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing Battery Type 1.5V AAA Alkaline Auto-off After 10 minutes of non-use and 2 minutes after reading Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) Weight 64 g (2.3 oz) Ordering Information HI726 Checker®HC is supplied with sample cuvette and cap (2 pcs.), Nickel High Range reagent starter kit (reagents for 6 tests), 1.5V AAA Alkaline battery (1 pc.), and instruction manual. Reagent Set HI726-25 Reagents for 25 Nickel High Range tests Calibration Set HI726-11 Nickel High Range certified standard kit | www.hannainst.com 10 10.156 Photometers Checker®HC
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