User manual HANNA INSTRUMENTS HI 3855

[. . . ] Instruction Manual SPECIFICATIONS Range 0 to 0. 30 mg/L (ppm) as Cyanide Smallest Increment 0. 01 mg/L in the 0. 00-0. 15 range 0. 05 mg/L in the 0. 15-0. 30 range Analysis Method Colorimetric Sample Size 10 mL Number of Tests 100 Case Dimensions 235x175x115 mm (9. 2x6. 9x4. 5") Shipping Weight 580 g (20. 4 oz. ) HI 3855 Cyanide Test Kit SIGNIFICANCE AND USE Cyanide refers to all of the CN groups in cyanide-compounds that can be determined as the cyanide ion CN-. In most natural waters the molecular HCN form predominates. In solutions of metal cyanides, the CN group may also be present as a complex of varying stability. [. . . ] · Rotate the disc while looking at the color test windows and stop when you find the color match. Read the value in the result window and record it in mg/L (or ppm) of Cyanide as CN-. www. hannainst. com 10/99 Dear Customer, Thank you for choosing a Hanna Product. Please read the instructions carefully before using the chemical test kit. It will provide you with the necessary information for correct use of the kit. Remove the chemical test kit from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately. Each kit is supplied with: · HI 3855A-0 Cyanide Reagent, 1 bottle (17 g); · HI 3855B-0 reagent, packets (100 pcs); · HI 3855C-0 reagent, packets (100 pcs); · 1 checker disc; · 2 glass vials with caps; · 1 plastic pipette (3 mL); · 1 spoon. Note: Any damaged or defective item must be returned in its original packing materials. CHEMICAL REACTION Cyanides react with the pyridine-pyrazolone reagent to form a blue complex in neutral buffered solution. The absorbance of this colored product is proportional to the concentration of cyanide present in the aqueous sample. INSTRUCTIONS READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT Note: Temperature is a very important parameter for this test method. For best results the sample should have a temperature not exceeding 20°C. · Using the plastic pipette, fill each glass vial with 10 mL of sample, up to the mark. · Insert one of them into the left hand opening of the checker disc. This is the blank. ISTR3855 · Replace the cap immediately, to prevent the escape of chlorine gas which is developed during the reaction, and shake gently for 30 seconds. · Wait for 30 seconds and add the content of one packet of HI 3855B-0 reagent. [. . . ] Caution: Ultraviolet radiation may cause fading of colors. When not in use, keep the disc protected from light, in a cool and dry place. PRINTED IN ITALY REFERENCES Standard Methods for the Examination of Water and Wastewater, 18th edition, 1992 HEALTH AND SAFETY The chemicals contained in this kit may be hazardous if improperly handled. Read Health and Safety Data Sheet before performing this test. [. . . ]