Page 15 - Water purification system for hemodialysis _ New guideline อ.กลศร

When should chemical reanalysis of

RO water be considered?

• Increased raw water conductivity or changing

source of raw water supply

• Increased RO water conductivity (>25 µS/cm)

• Especially in case of increased hardness of post-softener

water

• Decrease percent rejection of RO

• Rejection < 90 %

• Decrease > 10 % of previous value

• Patient(s) had suspicious clinical features of

toxicity from some chemical substance