TABLE 6. WATER QUALITY REQUIREMENTS FOR SELECTED USES
(Allowable limits in parts per million)
aC4
3r W r.
00 02 C. 0 ~a
,Use a Other requirements
Air Conditioning - 0.5 low 1 .. No corrosiveness, slime formation Baking 10 10 .2 low .2 0 P Boiler feed water
-I PSI 20 80 80 3000-500 5 40 50 200 8.0 150-250 PSI 10 40 40 2500-500 3 20 30 100 8.4- 50-400 PSI 5 10 10 1500-100 0 5 5 40 9.0 20 OQver 400 PSI 1 2 2 -_ 50 - 0 1 0 20 9.6 Brewing
Light beer 0-10 0-10 .1 500-1500 75-80 low .2 50 50-68 6.5-7.0 10 60-100 100-200 30 P NaC1 less than 275 ppm
Dark beer 0-10 0-10 .1 500-1500 80-150 low .2 50 50-68 6.5-7.0 10 60-100 200-5006 30 - P NaC1 less than 275 ppm
Carbonated Beverages 1- 2 5-10 200-250 0.1-0.2 850 50-128 low 0-0.2 - - 250 250 0.2-1.0 P
Caonfectionary - 0.2 50-100 low .02 - 7.9 - P No corrosiveness, slime formation
Dalry industry 0 180 0.1-0.3 500 none - - 17 30 60 P Food Canning and Freezing 1-10 __ 350-85 0.2 850 30-250 none 1.0 - 7.5 8.6 400-600 - 1.0 P
Food Equipment washing 1 5-20 10 .2 850 none - - - 250 . 1.0 P
Food Processing, general 1-10 5-10 10-250 .2 850 30-250 low .- 1.0 P Ice 1- 5 5 -_ .2 300 30-50 10 -.- P Laundering 50 .2 - Plastics clear, uncolored 2 2 53 .02 200 ... -..
TAmerican Water Works Association 1950 and Water Quality Criteria, McKee and Wolf 1963
-P indicates that potable water, conforming to USPHS standards, is necessary
-Peas 200400, fruits and vegetables 100-200, legumes 25-75