19.13. Performance Specifications and Installation Requirements for Permanently-Installed Units:

19.13.1. Emergency Showers:
19.13.1.1. The face of the emergency shower head shall be installed no less than 82 inches nor more than 96 inches in height from the surface on which the user stands. The spray pattern shall
have a minimum diameter of 20 inches at 60 inches above the surface on which the user stands, and the center of the spray pattern shall be located at least 16 inches from any obstruction. An
exception is that in a combination unit, the eyewash is not considered an obstruction for the purpose of determining the distance of the center of the spray pattern. Multiple-spray emergency
shower units are exempt from these requirements and will be installed according to the manufacturer’s specifications.
19.13.1.2. Enclosures, if used, shall provide for a minimum unobstructed area 34 inches in diameter in order to accommodate the movement necessary in an emergency situation.
19.13.1.3. Shower actuating devices shall be easy to locate and readily accessible to the user:
19.13.1.3.1. Hand pull devices should be located not more than 69 inches nor less than 55
inches above the surface on which the user stands.
19.13.1.3.2. Push handles and (or) paddles should be approximately 40 inches above the surface
on which the user stands.
19.13.1.3.3. Foot treadles should not be more than 6 inches above the walking surface.
19.13.1.4. The shower shall be tested according to the following procedures:
19.13.1.4.1. With water pressure on and the valves closed, check the visible plumbing connections for leaks.
19.13.1.4.2. Ensure the face of the shower head is not less than 82 inches nor more than 96
inches from the surface on which the user stands. Multiple-spray showers are exempt from this
requirement.
19.13.1.4.3. Move the valve to the full open position. The valve shall move smoothly and
freely and remain open without requiring further attention from the operator.
19.13.1.4.4. With the valve in the “full on” position, the diameter of the spray pattern shall be a minimum of 20 inches at a height of 60 inches above the standing surface. The center of the spray shall be at least 16 inches from any obstructions. Multiple-spray showers are exempt from this requirement.

19.13.2. Eyewash Equipment:

19.13.2.1. Eyewash Units:
19.13.2.1.1. A means shall be provided to ensure a controlled flow of potable water or its equivalent is provided to both eyes simultaneously at a pressure low enough not to be injurious
to the user. Normally this can be accomplished by providing a water stream that rises between
6 and 12 inches from the nozzle.
19.13.2.1.2. Nozzles will be protected from contamination, and if protective covers are used,   
their removal shall not require a separate motion by the operator when activating the unit.
19.13.2.1.3. Units shall be positioned with the water nozzles 33 inches to 45 inches from the
surface on which the user stands. Eyewash-actuating devices shall be easy to locate and readily accessible. If a foot treadle is used, it should not be located more than 6 inches above the floor.
19.13.2.2. Eye and Face Wash Units. The units shall meet the same criteria as an eyewash unit (paragraph 19.13.2.1.) except they shall be capable of delivering a greater volume of water. This additional flow is required so the entire surface of the face may be irrigated.

19.13.3. Hand-Held Drench Hoses.

Drench hoses support shower and eyewash units but do not replace them. They can be used in cases where the user is in an awkward position physically to reach parts of the face or body that are inaccessible to the fixed stream of the shower or eyewash. Eyes are usually washed with a spent stream which is accomplished by holding the hose up and washing the eye at the point where the stream has minimum pressure.

19.13.4. Combination Units.

These units shall be installed so all components can be operated individually from a common water supply line and shall meet the previously stated performance
and installation criteria for each component. It is not necessary for all components to operate
simultaneously (individual conditions will dictate this requirement).

19.13.5. Self-contained Units.

These units shall be constructed of non-corrosive materials, shall provide a minimum of 15 minutes continuous flow and the stored fluid shall be protected against contaminants and temperature extremes. These units may be filled with potable water or a solution approved by either the manufacturer or the installation medical services. Instructions and expiration dates shall be permanently affixed to the unit.

19.13.6. Eyewash Bottles.

Eyewash bottles shall have the capacity to deliver immediate flushing to the eyes. Eyewash bottles are not a replacement for other types of emergency equipment.
These bottles may be filled with potable water or an eye-flushing solution, either approved by
the manufacturer or by installation medical services. Local procedures will be developed to prevent these units from being exposed to extreme temperatures and the instructions and expiration dates shall be permanently affixed to the unit.