LABORATORY SERVICE

           Even though water may be clear, it does not necessarily mean that it is safe for us. It is important to judge the safety of water by taking the following qualities into consideration :

Physical & Chemical Properties
          - Appearance
          - Turbidity (NTU)
          - pH (25 C) *
          - Conductivity(us/cm) (25 C) *
          - Total Dissolved Solids (ppm as NaCl)
          - Total Hardness (ppm as CaCO3)
          - Ca-Hardness (ppm as CaCO3)
          - Mg-Hardness (ppm as CaCO3)
          - M-Alkalinity (ppm as CaCO3)
          - P-Alkalinity (ppm as CaCO3)
          - Bicarbonate (ppm as CaCO3)
          - Total Iron (ppm as Fe)
          - Chloride (ppm as Cl)
          - Residual Chlorine (ppm as Cl2) (at site checking)

REMARK
          1. According to standard Methods for the Examination of Water and Wastewater APHA,AWWA,WEF,21th Edition2005

Microbiological Properties
          - Total Viable Microbial Count (CFU/mL)

REMARK
          1. According to standard water quality described by ASI/AAMI/ISO 23500:2011,Total viable microbial count in water for hemodialysis should be less than 100 CFU/mL and total viable microbial count in dialysate should be less than 100 CFU/ml.
          2. Total viable microbial count is performed on Tryptic soy agar and incubated at 37°C
48 hours.

          3. Analysis Method : Pour Plate Method (APHA,AWWA,21st edition 2005.)

          Please contact Watech to determine the laboratory best suited to your water testing requirements.