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
H3895 CTK Agriculture, Basic
HI700 Checker HC ® - Ammonia, LR
HI147-00 Thermometer Checkfridge™ (°C)
HI9147-04 Dissolved Oxygen / °C - Meter, Galvanic DO Probe
HI763100 Digital conductivity electrode - 4 ring, platinum (edge)
HI3131B - Refillable Combination ORP Electrode for Titration and Laboratory Use
HI98308 PWT - Pure Water Tester - Conductivity (up to 99.99 µS/cm)
Turbidity (EPA method) and Chlorine Portable Meter - HI93414
HI8733 EC Meter with Multi-Range 0.0 to 199.9 mS/cm ATC
เครื่องวัดปริมาณฟอสฟอรัส ช่วงสูง รุ่น HI706
HI98103 CHECKER pH -Tester (0.01 pH Resolution)
HI7007L - 7.01 pH@25°C - SQ - 500ml
FC220B - pH Elektrode
HI766E2 K-Type, General Purpose w Cable
HI93740-01 Nickel LR - Reagents - 50 Tests
HI5007 - 7.01 pH@25°C - TQ - 500ml
HI70031C - EC 1413 µS/cm@25°C Zert. - 25x20ml
HI98121 COMBO pH/ORP/°C-Tester, waterproof
HI7662 Temperature Probe
HI98304 DiST®4 EC-Tester (up to 19.99 mS)
Calibration Standard HI 711 Checker HC ®
HI93721-01 Iron HR - Reagents -100 Tests
น้ำยามาตรฐานสอบเทียบ
HI7061L - Electrode Cleaning Solution (General) - 500ml
HI775 Checker HC ® - Alkalinity in fresh water (dKH)
สารละลายมาตรฐานความขุ่น 20 NTU 

