NASA-LLIS-0138
Lessons Learned - GOX Vent Arm Air Receivers Bleed Manifold Venting Operations
active, Most Current
| Organization: | NASA |
| Publication Date: | 25 September 1992 |
| Status: | active |
| Page Count: | 2 |
scope:
Description of Driving Event:
During bleed down of the 125 psi air system, a process which lasts less than one minute, the noise level at the Pad B gaseous oxygen (GOX) vent arm air receiver outlet vent exceeds permissible OSHA noise exposure limits. A noise hazard survey conducted during the bleed down operation was performed on the air system to determine the noise level near the operator's ear. This survey recorded a noise level of 126.5 DBA. OSHA 1910.95, occupational noise exposure, limits noise exposure for fifteen minutes or less to 115 DBA. A possibility exists for personnel permanent hearing loss.
Document History
NASA-LLIS-0138
September 25, 1992
Lessons Learned - GOX Vent Arm Air Receivers Bleed Manifold Venting Operations
Description of Driving Event:
During bleed down of the 125 psi air system, a process which lasts less than one minute, the noise level at the Pad B gaseous oxygen (GOX) vent arm air receiver outlet...
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