User manual HANNA INSTRUMENTS HI 38086

[. . . ] Instruction Manual Range SPECIFICATIONS 0 to 125 mg/L (ppm) as Ca 0 to 250 mg/L (ppm) as Ca Smallest Increment 1 mg/L [in the 0-125 mg/L range] 2 mg/L [in the 0-250 mg/L range] Analysis Method Turbidimetric Sample Size 50 mL or 25 mL Number of Tests 100 Case Dimensions 235x175x115 mm (9. 2x6. 9x4. 5") Shipping Weight 950 g (33. 5 oz. ) 2- Add 5 drops of Buffer Reagent and swirl to mix. 7- Hold the tube close to the Graduated card as shown in the figure. x5 HI 38086 Calcium Test Kit for Irrigation Water SIGNIFICANCE AND USE Calcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter, depending on its source and treatment. [. . . ] Use the pipette to fill the tube with the reacted sample until the black stripe completely disappears. To help in detecting the endpoint, move the test tube from one black stripe to the other until they are both no longer visible. 8- Read directly from the Graduated card the concentration in mg/L (ppm) of calcium that corresponds to the level of the liquid in the test tube. 9- In case the black stripe on the Line card disappears with the liquid level under the 125 ppm mark, the calcium concentration is higher than 125 ppm and the original sample needs to be diluted. In this case perform the test as follows. 10- Fill the plastic vessel with water sample up to the 25 mL mark. 11- Add Deionized Water up to the 50 mL mark. 12- Follow the instructions from step 2 to step 7. 13- Read from the Graduated card the value in correspondence of the level of the liquid in the test tube and multiply it by 2 to obtain the concentration in mg/L (ppm) of calcium. 14- To convert the reading in mg/L of CaCO3, multiply the mg/L of calcium by 2. 5. 15- Rinse all labware with demineralized water after each analysis and shake dry. 25 mL www. hannainst. com 02/00 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. [. . . ] Vogel's, Textbook of Quantitative Chemical Analysis, 5th Ed. , Longman Scientific & Technical. HEALTH AND SAFETY The chemicals contained in this kit may be hazardous if improperly handled. Read the relevant Health and Safety Data Sheet before performing this test. ISTR38086 [. . . ]