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
เครื่องวัดค่าเหล็ก รุ่น HI721
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
HI5521 Research Grade pH/ORP and EC/TDS/Salinity/Resistivity Meter with CAL Check™
HI2003 - edge® Dedicated Conductivity/TDS/Salinity Meter
HI38054 CTK Ozone
HI771 Checker HC ® - Chlorine, Ultra-High Range
HI7030L - EC 12880 µS/cm@25°C - 500ml
Calibration Standard HI 771 Checker HC ®
HI4016-10 ISE 10 mg/L (ppm) Sodium Std , 500 ml Bottle-Copy
HI98308 PWT - Pure Water Tester - Conductivity (up to 99.99 µS/cm)
BL10 Black Stone Dosing Pump 10.8 lph 3 bar
HI715 Checker HC ® - Ammonia, MR
HI7036L - 12.41 g/L (ppt) TDS @25°C - 500ml
เครื่องวัดปริมาณโบรมีน ในตัวอย่างน้ำ รุ่น HI716 


