General information about our pH buffers / calibration:
Available grades:
Technical Quality
The buffer solutions of HANNA instruments include solutions from pH 1.00 to pH 13.00 and allow calibration over the entire pH scale with an accuracy of ± 0.01 pH. The buffer solution series is particularly suitable for pH measurements that require high accuracy. All solutions with certificate of analysis.
Millesimal Quality
Accuracy of ± 0.002 pH for calibration of measuring instruments with 0.001 resolution. All solutions in opaque packaging with certificate of analysis.
Standard Quality
Accuracy of ± 0.01 pH in different packaging, with or without a certificate of analysis.
Available packages: Bottle: 230ml – 500ml – 1L Can: 3.78 L (gal) Individual portions – and virtually always fresh & no contamination risk Shelf life up to 5 years
HI931001 pH and mV Precision Simulator (BNC)
BL983315-1 TDS Mini Controller 0.0 to 199.9 mg/L (ppm) - 230V
HI93102-0 AMCO-AEPA-1 Calibration Solution at 0 NTU, 30 ml
เครื่องวัดปริมาณไนไตรท์ ช่วงสูง ในตัวอย่างน้ำ รุ่น HI708
HI7035L - EC 111800 µS/cm@25°C - 500ml
HI708 Checker HC ® - Nitrite, HR
HI5001 - 1.00 pH@25°C - TQ - 500ml 




