User manual HANNA INSTRUMENTS HI 38023

[. . . ] Instruction Manual SPECIFICATIONS Range Smallest Increment Analysis Method Sample Size Number of Tests Case Dimensions Shipping Weight 10 to 200 mg/L (ppm) as Chlorine 10 mg/L as Chlorine Drop count titration 1 mL 100 235x175x115 mm (9. 2x6. 9x4. 5") 547 g (19. 3 oz. ) INSTRUCTIONS READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT 1- Fill the calibrated vessel with tap water up to the 50 mL mark (the 50 mL residual chlorine in tap water will not affect the test). 2- Add 5 drops of Potassium Iodide Solution and swirl gently to mix. HI 38023 Total Chlorine Extended Range Test Kit 6- Using the 1 mL plastic pipette, add Thiosulfate Reagent drop by drop, swirling after each drop, while keeping an accurate count of the drops being added to the solution. SIGNIFICANCE AND USE The chlorination of water supplies and polluted waters is used mainly to destroy or deactivate disease-producing microorganisms. [. . . ] 3- Add 1 packet of Sulfamic Reagent and use the spoon to mix and dissolve. 7- Continue adding Thiosulfate Reagent until the solution changes from blue to colorless. 8- To obtain the concentration in mg/L (or ppm) of total chlorine in your sample, multiply by 10 the number of drops of Thiosulfate Reagent used to turn the solution from blue to colorless. www. hannainst. com Note: Any damaged or defective item must be returned in its original packing materials. ISTR38023 12/00 Dear Customer, Thank you for choosing a Hanna Product. Please read the instruction sheet carefully before using the test kit. It will provide you with the necessary information for correct use of the kit. If you need additional information, do not hesitate to e-mail us at tech@hannainst. com. 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: · Potassium Iodide Solution, 1 bottle with dropper (30 mL); · Sulfamic Reagent, packets (100 pcs); · Starch Indicator, 1 bottle with dropper (25 mL); · Thiosulfate Reagent, 1 bottle (100 mL); · 1 calibrated plastic vessel (50 mL); · 1 syringe (1 mL) with tip; · 1 plastic pipette (1 mL); · 1 spoon. drops x 10 = mg/L Total Chlorine 4- Use the syringe to add 1 mL of your sample to the vessel, dispensing the sample below the solution level in the vessel. Note: To measure exactly 1. 0 mL of sample with the syringe, push the plunger completely into the syringe and insert the tip into sample. Pull the plunger out until the lower edge of the seal is on the 0. 0 mL mark of the syringe. [. . . ] The water sample is treated with potassium iodide and strongly acidified with acid. The amount of iodine generated is equivalent to the chlorine in the sample; the concentration of iodine is calculated by titration with thiosulfate ions that reduce iodine back to iodide ions. PRINTED IN ITALY [. . . ]