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Redox-Test Solution 470 mV@20°C, 500 ml
EC/TDS Meter
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Standard-Leitfähigkeitslösung 12880 µS/cm, 3.78L Kanister (Gallone)
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Calibration Solution 12880 µS/cm for Calibration, 500 ml
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Conductivity Solution 1413 µS/cm for Calibration, 500 ml
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EC Value @25°C 1413 µS/cm Size 500 mL Package 1 bottle FDA Bottle No Certificate of Analysis Yes
EC/TDS Solution
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Standard-TDS Calibration Solution 1382 ppm, 500 ml
เครื่องวัดปริมาณไนไตรท์ ช่วงสูง ในตัวอย่างน้ำ รุ่น HI708
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น้ำยามาตรฐานสอบเทียบ
HI5421 Research Grade Dissolved Oxygen and BOD Meter
HI76313 Platinum, four ring Conductivity/TDS probe
HI9829 Multiparameter pH/ISE/EC/DO/Turbidity Waterproof Meter with GPS option
BL983329-1 TDS Mini Controller 0.0 to 999 mg/L (ppm) - 230V
HI3810 CTK Dissolved Oxygen
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HI3811 CTK Alkalinity
HI727 Checker HC ® - Color of Water
HI7022L - 470mV ORP Test Solution - 500ml