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
HI98120 ORP/°C-Tester, waterproof
HI991300 Multiparameter pH/EC/TDS/°C - EC to 3999 µS
เครื่องวัดอุณหภูมิอาหาร
HI736 Checker HC ® - Phosphorous, ULR
HI70480 Free-chlorine reagent kit for PCA Series
HI98311 DiST®5 EC/TDS/C°-Tester, (0-3999 µS/cm - 0-2000 mg/l (ppm)) waterproof
HI5321 Research Grade EC/TDS/Salinity/Resistivity Meter with USP
HI711 Checker HC ® - Total Chlorine
HI70030C - EC 12880 µS/cm@25°C Zert. - 25x20ml
HI70038P - 6.44 g/l (ppt) TDS@25°C - 25x20ml
HI93721-01 Iron HR - Reagents -100 Tests
HI7635 - Industrial Conductivity Probe
HI3190T -Redox Electrode Industry
HI93752-01 Calcium and Magnesium HR, Oxalate (Ca) and Calmagite (Mg) (100 Tests)
เครื่องวัดปริมาณคลอรีนอิสระ รุ่น HI701 

