User manual HANNA INSTRUMENTS HI 38015

[. . . ] Instruction Manual Range SPECIFICATIONS 500 to 10000 mg/L (ppm) Cl ­ 5000 to 100000 mg/L (ppm) Cl 100 mg/L [500 to 10000 mg/L range] 1000 mg/L [5000-100000 mg/L range] Silver nitrate titration 2. 5 mL and 0. 25 mL 100 235x175x115 mm (9. 2x6. 9x4. 5") 664 g (23. 4 oz. ) ­ INSTRUCTIONS READ ALL THE INSTRUCTIONS BEFORE USING THE TEST KIT Note: Label the two syringes to avoid cross-contamination as follows: tag the syringe to be used for sample extraction as "S" and "T" the other for titration (HI 38015C-0). High Range - 5000 to 100000 mg/L of Chloride 1- To measure chloride in the 5000 to 100000 mg/L range, rinse and fill the S (sample) syringe with water sample. Note: To measure exactly 0. 25 mL of sample with the syringe, push the plunger completely into the syringe and insert the tip into sample. [. . . ] If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately. Each kit is supplied with: · HI 38015A-0 Chloride Reagent, 1 bottle (100 mL); · HI 38015B-0 Chloride Reagent, 2 bottles with dropper (2x25 mL); · HI 38015C-0 Chloride Reagent, 1 bottle (100 mL); · Demineralizer Bottle with filter cap for about 12 liters of deionized water (depending on the hardness level of water to be treated); · 1 calibrated plastic vessel (50 mL) with cap; · 1 plastic pipette (3 mL); · 1 plastic pipette (1 mL); · 2 syringes (1 mL) with tips; · 1 brush. Note: Any damaged or defective item must be returned in its original packing materials. Chloride ions are one of the major inorganic anions in water and wastewater. Although high concentrations of chloride in water are not known to be toxic to humans, its regulation is mainly due to adverse effect on taste. It is essential to monitor chloride concentration in boiler systems to prevent metal parts being damaged. In high levels, chloride can corrode stainless steel and be toxic to plant life. The Hanna Test Kit is equipped with all you need to determine chloride level of water. Note: mg/L is equivalent to ppm (parts per million). 6- While swirling the vessel, add 10 drops of HI 38015B-0 reagent through the cap port. 7- Take the titration syringe (T labeled), and push the plunger completely into the syringe. Insert tip into HI 38015C-0 solution and pull the plunger out until the lower edge of the plunger seal is on the 0 mL mark of the syringe. 8- Place the syringe into the cap of the plastic vessel and slowly add the titration solution one drop at a time. Continue adding titration solution until the solution in the plastic vessel changes from yellow to brick-red. x 10 CHEMICAL REACTION The chloride level in mg/L (ppm) is determined by a silver nitrate titration, using potassium chromate as indicator. The color change from yellow to brick-red determines the end point of this titration. PRINTED IN ITALY 3- Replace the cap and shake gently for at least 2 minutes. By gently squeezing the bottle, add demineralized water to the vessel up to the 25 mL mark. [. . . ] Suspended matter in large amounts should be removed by prior filtration. REFERENCES Official Methods of Analysis, A. O. A. C. , 14th Edition, 1984, p. Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985, pages 288-290. HEALTH AND SAFETY The chemicals contained in this test kit may be hazardous if improperly handled. Read the relevant Health and Safety Data Sheets before performing the test. [. . . ]