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
น้ำยาสอบเทียบมาตรฐานแบบรวดเร็ว (HI5036-050)
HI7075 Electrode filling solution 1.7M KNO3 + 0.7M KCl, 4 x 30 ml
สารละลายอิเล็กโทรไลต์สำหรับเติมหัววัดค่ากรด-ด่าง (HI7082L)
HI726 Checker HC ® - Nickel, HR
BL932700-1 ORP Mini Controller +/-1000mV - 4 to 20mA output - 220 V
สารเคมีวัดค่าไนเตรต HI782-25 ยี่ห้อ HANNA สำหรับวัดน้ำในตู้เลี้ยงปลาทะเล
HI723 Checker HC ® - Chromium VI, HR
HI5002 - 2.00 pH@25°C - TQ - 500ml 



