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
HI98311 DiST®5 EC/TDS/C°-Tester, (0-3999 µS/cm - 0-2000 mg/l (ppm)) waterproof
HI7073L - Proteins - 500ml
เครื่องวัดอุณหภูมิอาหาร
HI4004-01 ISE 0.1M Calcium Std , 500 ml Bottle
HI93721-01 Iron HR - Reagents -100 Tests
HI70031C - EC 1413 µS/cm@25°C Zert. - 25x20ml
HI98183 pH / ORP / °C Meter + PC Interface, Waterproof
HI1286 - Combination pH Electrode
BL983329-1 TDS Mini Controller 0.0 to 999 mg/L (ppm) - 230V
น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม 


