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
HI6100205 - AmpHel Flat Tip (Acid with Fluoride ions) Process pH Electrode
HI5421 Research Grade Dissolved Oxygen and BOD Meter
เครื่องวัดค่าเหล็ก รุ่น HI721
HI70004P - 4.01 pH@25°C - SQ - 25x20ml
Turbidity (EPA method) and Chlorine Portable Meter - HI93414
PCA 320 Online pH / Chlorine / °C - Analyzer / Controller
HI93746-01 Iron LR - Reagents -100 Tests
HI727 Checker HC ® - Color of Water
HI98103 CHECKER pH -Tester (0.01 pH Resolution)
Reagents for HI 733 Checker HC ®, 25 Tests
เครื่องวัดปริมาณฟอสเฟต ช่วงสูง รุ่น HI717
Marine Salinity Waterproof Tester
สารละลายมาตรฐานความขุ่น 20 NTU 

