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
HI98127 pH/°C-Tester (0.1 pH resolution) - waterproof
HI98129 COMBO Tester for pH/EC/TDS/C° up to 3999 µS, waterproof
HI8733 EC Meter with Multi-Range 0.0 to 199.9 mS/cm ATC
Reagents for HI 713 Checker HC ®, 25 Tests
HI3131B - Refillable Combination ORP Electrode for Titration and Laboratory Use
CTK Chlor Frei
HI9829 Multiparameter pH/ISE/EC/DO/Turbidity Waterproof Meter with GPS option
Marine Salinity Waterproof Tester
CTK Härte Gesamt
HI7004L - 4.01 pH@25°C - SQ - 500ml
HI708 Checker HC ® - Nitrite, HR
HI7036L - 12.41 g/L (ppt) TDS @25°C - 500ml
เครื่องวัดปริมาณโครเมี่ยม ช่วงสูง รุ่น HI723 


