Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 3 (Q.No. 2)
2.
The prescribed hardness limit of potable water ranges between
50 to 75 P.P.M.
75 to 115 P.P.M.
100 to 150 P.P.M.
150 to 200 P.P.M.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Kalloljit said:   4 years ago
200 to 600 ppm.
(2)

Mathi said:   6 years ago
Prescribed limit should be 200 to 300 ppm.

Max limit upto 600ppm.
(1)

Aamir said:   6 years ago
It should be 200 to 600ppm.
(1)

Gubendhiran said:   6 years ago
As per WHO hardness.

Less than 60ppm is soft,
60 to 120 ppm moderately soft,
120 to 180 ppm hard,
Greater than 180 very hard,
As per IS 10500,
Limited up to 300ppm,
Maximum limit of 600ppm.
(2)

Post your comments here:

Your comments will be displayed after verification.