of the calibration and testing standards Figure 2. Catch box currently used by Morrison hershfield to calibrate outlined in the ASTM E 1105-00 document. their spray rack. Finally, this project will be completed on time, Upon completion of a test, the installed test meeting appropriate deadlines, and within specimen is thoroughly inspected for the budget requirements outlined by leakage. If any leakage is discovered, Morrison Hershfield. appropriate action is taken to determine the party at fault. Although the current spray MAIN DESIGN REQUIREMENTSIn order for rack apparatus used by Morrison Hershfield is this project to be considered successful, it not calibrated properly, it is the only system must meet the following requirements: available for their building science consultants. This is one of the primary Meet flow rate requirements of ASTM • reasons our group has been asked to improve standard E 1105-00 upon their current device. Other significant Improve portability and usability of previous • design considerations that have been design addressed by the customer include: Ensure safety and structural integrity of • modularity, material integrity, and portability design of the rack itself. These product conditions Nice aesthetics and professional • and performance criterion have been appearance Is completed within Morrison Hershfield’s examined and presented in the team’s • Product Design Specification table in budget Appendix D. ASTM E 1105-00 Calibration Standards MISSION STATEMENTThe Water Penetration Meeting the calibration requirements Test Apparatus Team will design and verifies that the water penetration testing prototype a spray rack system to exceed the device performs properly. The key elements performance and usability of Morrison of functionality include a uniform spray Hershfield’s current testing device. In pattern and meeting a target spray rate. As addition, an easy to use catch box will be stated in the standard, the water spray designed and fabricated in order to meet all system shall deliver water uniformly against
Figure 2. Catch box currently used by Morrison hershfield to calibrate their spray rack. Upon completion of a test, the installed test specimen is thoroughly inspected for leakage. If any leakage is discovered, appropriate action is taken to determine the party at fault. Although the current spray rack apparatus used by Morrison Hershfield is not calibrated properly, it is the only system available for their building science consultants. This is one of the primary reasons our group has been asked to improve upon their current device. Other significant design considerations that have been addressed by the customer include: modularity, material integrity, and portability of the rack itself. These product conditions and performance criterion have been examined and presented in the team’s Product Design Specification table in Appendix D. MISSION STATEMENTThe Water Penetration Test Apparatus Team will design and prototype a spray rack system to exceed the performance and usability of Morrison Hershfield’s current testing device. In addition, an easy to use catch box will be designed and fabricated in order to meet all of the calibration and testing standards outlined in the ASTM E 1105-00 document. Finally, this project will be completed on time, meeting appropriate deadlines, and within the budget requirements outlined by Morrison Hershfield. MAIN DESIGN REQUIREMENTSIn order for this project to be considered successful, it must meet the following requirements: • Meet flow rate requirements of ASTM standard E 1105-00 • Improve portability and usability of previous design • Ensure safety and structural integrity of design • Nice aesthetics and professional appearance • Is completed within Morrison Hershfield’s budget ASTM E 1105-00 Calibration Standards Meeting the calibration requirements verifies that the water penetration testing device performs properly. The key elements of functionality include a uniform spray pattern and meeting a target spray rate. As stated in the standard, the water spray system shall deliver water uniformly against