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
HI70007C - 7.01 pH@25°C - SQ Zert. - 25x20ml
HI98304 DiST®4 EC-Tester (up to 19.99 mS)
HI4016-03 ISE 1000 mg/L (ppm) Sodium Std , 500 ml Bottle
HI93714-01 Cyanide - Reagents - 100 Tests
เครื่องวัดปริมาณคลอรีนอิสระ รุ่น HI701
เซ็นเซอร์วัดออกซิเจนในน้ำสำหรับ HI9829 มัลติพารามิเตอร์
HI98120 ORP/°C-Tester, waterproof 



