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
HI4013-03 ISE 1000 mg/L (ppm) Nitrate Std , 500 ml Bottle
HI98309 UPW - Ultra Pure Water Tester - Conductivity (up to 1.999 µS/cm)
HI706 Checker HC ® - Phosphorous, HR
HI904 Karl Fischer Coulometric Titrator - 1ppm to 5%
เครื่องวัดสีในน้ำตัวอย่าง HI727
HI96740-11 CalCheck ™ Nickel LR Calibration-Set
BL983315-1 TDS Mini Controller 0.0 to 199.9 mg/L (ppm) - 230V
Reagents for HI 700 Checker HC ®, 25 Tests
HI93750-01 Potassium - Reagents - 100 Tests
HI3822 CTK Sulfite
Calibration Standard HI 721 Checker HC ®
HI708 Checker HC ® - Nitrite, HR
เครื่องวัดปริมาณซิลิกา ช่วงต่ำ ในตัวอย่างน้ำ รุ่น HI705 



