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
HI96802 Fructose - Digital Refractometer Portable
HI3834 - CTK Iron Test Kit
HI5522 Research Grade pH/ORP/ISE and EC/TDS/Salinity/Resistivity Meter with CAL Check™
HI5421 Research Grade Dissolved Oxygen and BOD Meter
HI6091 - 9.177 pH@25°C - MQ - 500ml
BL982411-1 ORP Mini Controller upto 1000mV - 230V
HI96822 Seawater Analysis (Salinity) - Digital Refractometer Portable
HI200M 1L Magnetic stirrer with stainless steel cover plate, 230V
HI2111B - pH Half Cell (strong alkaline solution)
HI98129 COMBO Tester for pH/EC/TDS/C° up to 3999 µS, waterproof
HI7022L - 470mV ORP Test Solution - 500ml
HI98127 pH/°C-Tester (0.1 pH resolution) - waterproof
เครื่องวัดปริมาณซิลิกา ช่วงต่ำ ในตัวอย่างน้ำ รุ่น HI705 

