782 APPENDIX 



STEAM TEMPERATURE-PRESSURE 



Pounds per 



sq. in. Atmo- 



Min. of Hg. Absolute Pressure, spheres. 



100 C 760 14-7 1-00 



105 C. . 906-4 17-5 1-19 



110C. .... 1075-3 20-8 1-41 



115 C 1269-4 24-5 1-67 



120 C 1491-2 28-8 1-96 



125 C. 1743-8 33-7 2-29 



PERCENTAGE DILUTIONS, ETC. 



(a) The amount of diluting fluid which it is necessary to add 

 to 1 volume of fluid of percentage X in order to prepare a fluid 



of percentage Y is ^ 1. 



(b) To prepare a specified volume Z of a Y per cent, solution 



7 y Y 



from an X per cent, solution, take of the latter volume 



.X. 



and make up to Z volume with diluting fluid. 



(c) To prepare a specified volume Z of a ^ dilution from a 



- dilution, take of the latter y volume and make up to 

 Z volume with diluting fluid. 



(B. BLACKLOCK, Lancet, 1921, vol. I., p. 377.) 



