What is the permissible limit of pH preferred for potable water?
A. 7-8.5 ppm
B. 6.5-9ppm
C. 10-14ppm
D. 1-7ppm
Answer:B
What is the permissible limit of pH preferred for potable water?
A. 7-8.5 ppm B. 6.5-9ppm C. 10-14ppm D. 1-7ppm