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
HI766E1 K-Type, General Purpose w Cable
HI7635 - Industrial Conductivity Probe
HI76407A/P DO Membrane for probe HI 76407 (5 pcss)
HI5007 - 7.01 pH@25°C - TQ - 500ml
น้ำยามาตรฐานสอบเทียบ
HI7639 - Inline Conductivity Probes with Platium Ring with PT100 sensor
HI991301 Multiparameter pH/EC/TDS/°C - EC to 20.00 mS
HI76409A/P DO Membrane for probe HI 76409 (5 pcs) 


