MIL-HDBK-1003/1
APPENDIX H DESIGN GUIDANCE FOR
EMERGENCY SHOWER AND EYEWASH STATIONS
1. EMERGENCY SHOWER AND EYEWASH STATIONS (ES/EWS) - Provide ES/EWS meeting ANSI Z 358.1 where required by Occupational Safety and Health Act (OSHA) regulations or by other competent authority, such as NAVOSH, Military Handbooks, or Design Manuals. Consult with the local station, EFA, and EFD authorities, including the process, environmental, and safety engineers, and the Industrial Hygienist about ES/EWS
locations, materials present, waste treatment systems available, and permits required. Locate ES/EWS as close to the hazard as possible, within 10 to 20 feet for highly corrosive chemicals, but not more than 10 seconds or 100 feet of unobstructed travel away, whichever is lesser.
a. For personnel protection within water-reactive (W/R) hazardous materials storage and handling areas, provide ANSI Z 78.1 chemical splash goggles, consider providing portable
ANSI Z 358.1 personal eyewash (PEW) protection, for use within the W/R area, and provide ES/EWS immediately outside the W/R area, but not more than the 10 seconds or 100 feet away from the work location. Ensure water from ES/EWS will not enter the W/R area; this may require provision of partitions, walls, berms, trenches, or curbs. The PEW should be of the smallest reasonable volume necessary to enable initial flushing on the way to the ES/EWS, to minimize the W/R hazard due to spillage of the flushing fluid. A W/R material spill is the most probable cause of the need for flushing, and the spillage of the flushing fluid provides the other chemical needed to initiate the reaction. Carefully consider whether to provide PEW or not, and document the decision analysis. PEW fluid presence may increase the risk of a W/R chemical event due to risk of accidental PEW fluid spill, and due to valid usage of PEW. W/R materials are defined in MIL-HDBK-1005/13 and
MIL-HDBK-1032/2.
2. ALARMS - Provide a waterflow-initiated alarm for each ES/EWS. For locations where potable water is not available, provide PEW protection and a manually initiated alarm. Provide a local audible signal device, a silencing switch, and a flashing strobe light for each ES/EWS and for each manual alarm, and optionally provide central reporting of the alarm
to a 24 hour per day manned location. Alarm installations
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