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
HI5016 - 1.68 pH@25°C - TQ - 500ml
CTK Chrom VI
BL10 Black Stone Dosing Pump 10.8 lph 3 bar
Multiparameter pH/ORP/EC/Pressure/Temperature Waterproof Meter
Calibration Standard HI 721 Checker HC ®
HI200M 1L Magnetic stirrer with stainless steel cover plate, 230V
BL931700-1 pH Mini Controller - 4 - 20mA output - 220V
HI775 Checker HC ® - Alkalinity in fresh water (dKH)
HI93751-01 Sulfate - Reagents - 100 Tests
HI700 Checker HC ® - Ammonia, LR
HI711 Checker HC ® - Total Chlorine
Turbidity (EPA method) and Chlorine Portable Meter - HI93414
HI771 Checker HC ® - Chlorine, Ultra-High Range
PCA 310 Online Chlorine Analyzer & Controller
HI2004 - edge® Dedicated Dissolved Oxygen Meter
HI5421 Research Grade Dissolved Oxygen and BOD Meter
เครื่องวัดปริมาณคลอรีนรวม รุ่น HI711
HI9147-04 Dissolved Oxygen / °C - Meter, Galvanic DO Probe
HI5321 Research Grade EC/TDS/Salinity/Resistivity Meter with USP
HI4005-53 Carbon Dioxide membrane kit (3 caps)
HI766E2 K-Type, General Purpose w Cable
HI7091L - Reducing Pretreatment Solution, 500 ml
HI70010P - 10.01 pH@25°C - SQ - 25x20ml
HI38000-10 -Reagents for CTK Sulfate
HI5006 - 6.00 pH@25°C - TQ - 500ml
HI904 Karl Fischer Coulometric Titrator - 1ppm to 5%
HI7635 - Industrial Conductivity Probe
เครื่องวัดปริมาณคลอรีนอิสระ รุ่น HI701 


