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
HI770 Checker HC ® - Silica, HR
BL981411-1 pH Mini Controller (Res 0.1pH) - 220V
HI706 Checker HC ® - Phosphorous, HR
HI7072 Electrolyte Solution, 1M KNO³, 4 x 30 ml
HI5005 - 5.00 pH@25°C - TQ - 500ml
เซ็นเซอร์วัดออกซิเจนในน้ำสำหรับ HI9829 มัลติพารามิเตอร์
HI727 Checker HC ® - Color of Water
HI717 Checker HC ® - Phosphate, HR
HI98130 COMBO Tester for pH/EC/TDS/C° up to 20 mS, waterproof
BL931700-1 pH Mini Controller - 4 - 20mA output - 220V
HI721 Checker HC ® - Iron
HI38020 CTK Chlorine Free & Total
BL983313-1 EC Mini Controller, 0 to 1999 µS/cm, 230V
HI723 Checker HC ® - Chromium VI, HR
เครื่องวัดปริมาณซิลิกา ช่วงต่ำ ในตัวอย่างน้ำ รุ่น HI705
HI736 Checker HC ® - Phosphorous, ULR
HI705 Checker HC ® - Silica, LR
HI701 Checker HC ® - Free Chlorine
Calibration Standard HI 721 Checker HC ® 



