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
HI3822 CTK Sulfite
HI991300 Multiparameter pH/EC/TDS/°C - EC to 3999 µS
HI98130 COMBO Tester for pH/EC/TDS/C° up to 20 mS, waterproof
HI3815 CTK Chloride
HI1131B - Combination pH Electrode
HI8931BN Conductivity Controller (0.01mS/cm resolution) with Input from Probe or Transmitter
Reagents for HI 770 Checker HC ®, 25 Tests
HI710006 Power Adapter, 230 Vac to 12 VDC, European Plug
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
HI93734-01 Chlorine HR Free & Total - Reagents - 100 Tests
HI5421 Research Grade Dissolved Oxygen and BOD Meter
เครื่องวัดค่ากรด-ด่าง แบบพกพา สำหรับชีส รุ่น HI981032
HI38058 CTK pH
Reagents for HI 723 Checker HC ®, 25 Tests
HI4016-02 ISE 100 mg/L (ppm) Sodium Std , 500 ml Bottle
Calibration Standard HI 706 Checker HC ®
HI7082 Electrolyte Solution 3.5M KCL, 4 x 30 ml
เครื่องวัดปริมาณไนไตรท์ ช่วงสูง ในตัวอย่างน้ำ รุ่น HI708
HI3864 CTK Phenol
HI98107 pHep pH -Tester (0.1 pH Resolution) 


