Table C-10. Hydrostatic Test Data for Nominal 1.50-Inch (D;) -2.25-Inch (Dq) 

 Flat Acrylic Windows, Test Specimens 46-50 



(Sealed with grease; 



radial cl 



earance 0.005 to 0.010 inch 



; nominal 



Dq/D; ratio 1.5) 





Parameter 



Specimen Number 



Value 





















46 



47 



48 



49 



50 



Max 



Avg 



Min 



Thickness (in.) 



0.338 



0.342 



0.344 



0.341 



0.344 



0.344 



0.342 



0.338 



Dq (actual, in.) 



2.240 



2.242 



2.238 



2.241 



2.241 



2.242 



2.240 



2.238 



Temperature (°F) 



67 



67 



69 



65 



65 



69 



67 



65 



t/D; Ratio (actual) 



0.225 



0.228 



0.229 



0.227 



0.229 



0.229 



0.228 



0.225 



Pressurization Rate (psi/min) 



660 



668 



660 



665 



685 



685 



668 



660 



Pressure (psi) 



Axial D 



isplaceme 



nt of Cer 



ter Point 



on Window's Low- 



Pressure Face (in.) 



500 



0.003 



0.002 



0.001 



0.001 



0.008 



0.008 



0.003 



0.001 



1,000 



0.011 



0.003 



0.011 



0.002 



0.015 



0.015 



0.009 



0.003 



1,500 



0.037 



0.007 



0.016 



0.022 



0.023 



0.037 



0.021 



0.007 



2,000 



0.052 



0.036 



0.036 



0.030 



0.031 



0.052 



0.037 



0.030 



2,500 



0.067 



0.052 



0.067 



0.059 



0.056 



0.067 



0.060 



0.052 



3,000 



0.085 



0.063 



0.085 



0.072 



0.087 



0.087 



0.078 



0.063 



3,500 



0.106 



0.077 



0.103 



0.089 



0.105 



0.106 



0.096 



0.077 



4,000 



0.134 



0.095 



0.123 





0.121 



0.134 



0-103 



0.095 



4,500 











0.148 









5,000 



















Displacement at Failure (in.) 





0.119 



0.148 



0.106 



0.161 



0.161 



0.134 



0.106 



Pressure at Failure (psi) 



4,100 



4,400 



4,225 



3,950 



4,700 



4,700 



4,275 



3,950 



Note: Grease liberally applied. 



58 



