Hanna HI-3812 ชุดทดสอบคุณภาพน้ำ (hardness)
Hanna ชุดทดสอบคุณภาพน้ำ สามารถตรวจสอบคุณภาพน้ำได้อย่างรวดเร็วและแม่นยำ ด้วยหลักการวัดที่ไม่ส่งผลกระทบต่อค่าต่าง ๆ ในน้ำ
HI3812 Hardness (as CaCO3) Total
Method Range Resolution Chemical Method Quantity
titration 0.0 to 30.0 mg/L (ppm) 0.3 mg/L (ppm) EDTA 100
0 to 300 mg/L (ppm) 3 mg/L (ppm)
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Total Hardness and Hydrogen Peroxide Test Kits
| Models | Range | Resolution | Chemical Method | Quantity | Included |
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0.0 to 30.0 mg/L (ppm) 0 to 300 mg/L (ppm) |
0.3 mg/L (ppm) 3 mg/L (ppm) |
EDTA | 100 | 30 mL hardness buffer 10 mL calmagite indicator 120 mL EDTA solution 20 mL plastic beaker with cap 50 mL plastic beaker with cap 1 mL syringe with tip |
| HI-3812 | |||||
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0 to 150 mg/L (ppm) | 5 mg/L (ppm) | EDTA | 50 avg. | 30 mL hardness LR reagent 50 mL calibrated vessel |
| HI-3840 | |||||
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40 to 500 mg/L (ppm) | 20 mg/L (ppm) | EDTA | 50 avg. | 30 mL hardness MR reagent 50 mL calibrated vessel |
| HI-3841 | |||||
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400 to 3000 mg/L (ppm) | 100 mg/L (ppm) | EDTA | 50 avg. | 30 mL hardness HR reagent 50 mL calibrated vessel |
| HI-3842 | |||||
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0 to 30 gpg | 1 gpg | EDTA | 100 | 30 mL buffer solution 10 mL calmagite indicator 75 mL EDTA solution (2) 20 mL plastic beaker with cap 1 mL plastic pipette |
| HI-38033 | |||||
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0.00 to 2.00 mg/L (ppm) 0.0 to 10.0 mg/L (ppm) |
0.25 mg/L (ppm) 1.0 mg/L (ppm) |
iodometric | 100 avg. | 100 mL hydrogen peroxide reagent A 17 g hydrogen peroxide reagent B 30 mL hydrogen peroxide reagent C 25 mL hydrogen peroxide reagent D graduated plastic test tube with cap 50 mL calibrated plastic vessel 3 mL plastic pipette 1 mL plastic pipette and plastic spoon |
| HI-38033 |












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