Page 97 - Pharmaceutical Analytical Chemistry III
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     (C) IRON IN WATER
* SOURCES :
- Iron salts are added to water samples as flocculating
  agents to remove suspended matters from water during
  purification processes.
 The maximum permissible iron conc. in public waters
  is 0.2 mg/l. Higher conc. must be removed as it may
  cause unaccepted taste and staining problems.
     	
