136 CONSTRUCTION AND MANAGEMENT OF SMALL GASWORKS. 



Example : A well contains 10,000 gallons of 6 liquor. 

 What yield of sulphate may be expected ? 



6 x 2*694 x 10,000= 161,640 ozs. = 90 cwts. 22 Ibs. 



The indications of the hydrometer are only approximate. 

 If an accurate determination is required, the distillation 

 test must be used. 



