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
PCA 310 Online Chlorine Analyzer & Controller
HI7081L 30 g/L Na solution for Sodium ISE, 500 ml Bottle
HI2003 - edge® Dedicated Conductivity/TDS/Salinity Meter
HI70038C - 6.44 g/l (ppt) TDS@25°C Zert. - 25x20ml
เครื่องวัดค่าเหล็ก รุ่น HI721
Calibration Standard HI 771 Checker HC ®
HI5012 - 12.00 pH@25°C - TQ - 500ml
เครื่องควบคุมค่าความนำไฟฟ้า 

