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
HI70442L - 1500 mg/L (ppm) TDS @25°C - 500ml
HI3314 - Resistivity Probe for BL983314 Mini Controller
HI7075 Electrode filling solution 1.7M KNO3 + 0.7M KCl, 4 x 30 ml
BL983321-1 TDS Mini Controller 0.00 to 19.99 mg/L (ppm) - 230V
HI1131P - Refillable, Combination pH Electrode for the Laboratory (BNC & Pin)
เครื่องวัดปริมาณแอมโมเนีย ช่วงต่ำ รุ่น HI700 


