User manual HANNA INSTRUMENTS HI 38081

[. . . ] Instruction Manual SPECIFICATIONS Range Smallest Increment Analysis Method Sample Size Number of Tests Case Dimensions Shipping Weight > 0 meq/L as Ca & Mg 0. 6 meq/L for 1. 0 mL sample 0. 2 meq/L for 3. 0 mL sample Titration 1. 0 mL or 3. 0 mL 100 (average) 235x175x115 mm (9. 2x6. 9x4. 5") 671 g (23. 7 oz. ) HI 38081 Calcium and Magnesium Test Kit for Irrigation Water 2- Replace the cap and shake for at least 2 minutes. The demineralized water is now ready. 3- Using the 3 mL plastic pipette, transfer 3 mL of your water sample to the 50 mL plastic vessel. 9- As the color changes from pink to purple, swirl for 15 seconds after each additional drop. [. . . ] Repeat the test by using the 1 mL pipette to transfer 1 mL of your water sample to the plastic vessel. 13- Calculate the meq/L of Calcium and Magnesium in your sample as follows: www. hannainst. com 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: · HI 38081A-0 Ca & Mg Reagent, 1 bottle with dropper (30 mL); · HI 38081B-0 EDTA Solution, 2 bottles (2x120 mL); · Calmagite Indicator, 1 bottle with dropper (10 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); · 1 plastic pipette (1 mL); · 1 plastic pipette (3 mL); · 1 syringe (1 mL) with tip. Note: Any damaged or defective item must be returned in its original packing materials. 5- Add 5 drops of HI 38081A-0 Ca & Mg Reagent and swirl to mix. If calcium and magnesium are present, the solution will turn wine red. meq/L (Ca + Mg) = mL of titrant x 60 14- To convert the reading in mg/L (ppm, parts per million) of CaCO3, multiply the meq/L by 50. 15- Rinse all labware with demineralized water after each analysis and shake dry. Note: High amounts of copper in your sample will alter the final end point color. [. . . ] 8- Slowly add the titration solution drop by drop, swirling after each drop. REFERENCES Adaptation of Standard Methods for the Examination of Water and Wastewater, 18th edition, 1992, APA AWWA WEF. 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. ISTR38081 [. . . ]