Log for Thursday 07 October 2004
Condensate Return Tests
Condensate is steam that is changed back to
water after being used. The water should have a pH of 7.00 and zero hardness.
Practically it is around 1 part per million (ppm).
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A calibrated pH meter determines the value of the pH. |
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Five drops of one solution is added to 25ml of condensate. A tablet is then added and crushed. A purple colour indicates some hardness and then a second solution is added drop by drop till you get a blue colour . Each drop indicates 1 ppm of hardness. |
