CABINET FOR HEALTH AND FAMILY SERVICES

1 kg per sq. cm = 14.223 lb. per sq. in. 1 lb. per sq. in. = 0.0703 kg per sq. cm . ... The design filtration rate shall not exceed one and one-half (1 ½) gallons per minute per square foot of filter area on diatomaceous earth filters, except that the rate of filtration may be increased to two (2) gallons per minute per square foot of filter ... ................
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