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
เครื่องวัดค่าเหล็ก รุ่น HI721
Calibration Standard HI 711 Checker HC ®
HI98129 COMBO Tester for pH/EC/TDS/C° up to 3999 µS, waterproof
HI98304 DiST®4 EC-Tester (up to 19.99 mS)
BL982411-1 ORP Mini Controller upto 1000mV - 230V
HI935005 K-Type Handheld-Thermometer - 1-Channel
HI700 Checker HC ® - Ammonia, LR
HI740217 Lab Safety Shield for COD Measurement
HI5002 - 2.00 pH@25°C - TQ - 500ml
HI4016-00 ISA for Sodium ISE, 500 ml Bottle
BL983322-1 EC Mini Controller, 0 to 19.99 µS/cm, 230V
HI7006L - 6.86 pH@25°C - SQ - 500ml
HI93752-01 Calcium and Magnesium HR, Oxalate (Ca) and Calmagite (Mg) (100 Tests)
HI93701-01 Chlorine Free Reagents - 100 Tests
HI5521 Research Grade pH/ORP and EC/TDS/Salinity/Resistivity Meter with CAL Check™
Calibration Standard HI 771 Checker HC ®
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
BL983313-1 EC Mini Controller, 0 to 1999 µS/cm, 230V
BL1.5 Black Stone Dosing Pump 1.5lph 13 bar
HI7075 Electrode filling solution 1.7M KNO3 + 0.7M KCl, 4 x 30 ml
PCA 310 Online Chlorine Analyzer & Controller
เครื่องวัดอุณหภูมิอาหาร
HI98312 DiST®6 EC/TDS/C°-Tester, (0.00-20.00 mS/cm - 0.00-10.00 g/l (ppt)) waterproof
HI715 Checker HC ® - Ammonia, MR
HI2003 - edge® Dedicated Conductivity/TDS/Salinity Meter
Reagents for HI 716 Checker HC ®, 25 Tests
HI98107 pHep pH -Tester (0.1 pH Resolution)
เครื่องวัดสีในน้ำตัวอย่าง HI727 

