Specifications HI3812 Total Hardness (*as CaCO¦) Type titration Range 0.0-30.0 mg/L (ppm) 0-300 mg/L (ppm) Smallest Increment 0.3 mg/L (ppm) 3 mg/L (ppm) Method EDTA Number of Tests 100 avg. Ordering Information HI3812 test kit comes with 30 mL hardness buffer, 10 mL calmagite indicator, 120 mL EDTA solution, 20 mL plastic beaker with cap, 50 mL plastic beaker with cap and 1 mL syringe with tip. Reagent HI3812-100 total hardness (*as CaCO¦), 100 tests avg. Specifications HI3890/HI38904 Total Hardness (*as CaCO¦) Type titration Range 0 - 80 TH ** Smallest Increment 1 TH ** Method calmagite Ordering Information HI3890 and HI38904 test kits comes with 30 mL hardness buffer, 10 mL calmagite indicator and 50 mL plastic beaker with cap.. Specifications HI38033 Total Hardness (*as CaCO¦) Type titration Range 0-30 gpg Smallest Increment 1 gpg Method EDTA Number of Tests 100 avg. Ordering Information HI38033 test kit comes with 30 mL buffer solution, 10 mL calmagite indicator, 75 mL EDTA solution (2), 20 mL plastic beaker with cap and 1 mL plastic pipette. Reagent HI38033-100 total hardness (*as CaCO¦), 100 tests avg. Chemical test kit reagents begin on page 9.44 HI3812 Total Hardness Test Kit The HI3812 is a titration-based chemical test kit that determines the total hardness concentration in two ranges: 0.0 to 30.0 mg/L and 0 to 300 mg/L. The HI3812 is supplied with all of the necessary reagents and equipment to perform the analysis. The test kit contains enough reagents for perform approximately 100 tests. • Complete setup · All required materials are included with the test kit, such as the sample beaker, indicator and reagent bottles, and plastic syringe. • High resolution · Readings from 0.0 to 30.0 mg/L are determined to 0.3 mg/L resolution. · Readings from 0 to 300 mg/L are determined to 3 mg/L resolution. • Replacement reagents available · There is no need to buy a new kit when reagents are exhausted. The HI3812-100 can be ordered to replace the reagents supplied with the kit. HI3890 • HI38904 Total Hardness Control Kit Hardness, or TH, gives the total concentration of calcium and magnesium salts on: 1°fH / 0.562°dH hardness corresponds to 10 mg/L (ppm) calcium carbonate. The harder the water, the bigger the risk of calcium and magnesium salt deposits on the walls of pools and spas. On the other hand, water that is too soft can be corrosive. °fH °dH very soft 0—7 0—4 soft 7—15 4—8 slightly hard 15—25 8—14 medium hard 25—32 14—18 hard 32—42 18—23 very hard >42 >23 The ideal TH for pool water is between 10 and 20°fH or 5 and 11°dH. • Complete setup · All required materials are included with the test kit, such as the sample beaker, indicator and buffer. HI38033 Total Hardness Test Kit The HI38033 is a titration-based chemical test kit that determines the total hardness concentration within the 0 to 30 grains per gallon (gpg) range. The HI38033 is supplied with all of the necessary reagents and equipment to perform the analysis. The test kit contains enough reagents for perform approximately 100 tests. • Complete setup · All required materials are included with the test kit, such as the sample beaker, plastic pipette, and reagent dropper bottles. • High resolution · Readings from 0 to 30 gpg are determined to 1 gpg resolution. • Replacement reagents available · There is no need to buy a new kit when reagents are exhausted. The HI38033-100 can be ordered to replace the reagents supplied with the kit. **1 °TH = 1 °fH = 0,562 °dH = 0,7 °eH = 0,2 meq/l = 10 mg/l CaCO3 9 Chemical Test Kits 9.20 | www.hannainst.com * 1 gpg = 17 ppm CaCO¦
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