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
เครื่องวัดสีในน้ำตัวอย่าง HI727
เครื่องวัดปริมาณคลอรีนรวม รุ่น HI711
เครื่องวัดปริมาณฟอสเฟต ช่วงต่ำ รุ่น HI713
เครื่องวัดค่าเหล็ก รุ่น HI721
BL983327-1 EC Mini Controller upto 10.00 mS/cm, 230V
HI98127 pH/°C-Tester (0.1 pH resolution) - waterproof 


