APPENDIX B
Chlorine Dosage
Use Table B-1 to determine how much of a material with chlorine must be used to chlorinate a given amount of water. To use the chart, follow these steps.
Select the desired parts of chlorine per million of water.
Determine the strength of the solution to be used. This decision will determine which chlorine-containing material to use. The materials to be used are as follows:
- Liquid sodium hypochlorite for a 5 percent solution.
- Solid chlorinated lime for a 25 percent solution.
- Solid calcium hypochlorite for a 70 percent solution.
- Gaseous chlorine for a 100 percent solution.
Compute the number of gallons to be chlorinated.
Read across the gallons-of-water line and down the parts-per-million/strength-of-solution column. Where they intersect is the amount of material required.
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