Mich. Admin. Code R. 408.13344 - Windows
Rule 3344.
(1)
A window shall be designed to fit the contour of the window support.
(2) A window supporting or window holding
member, which shall be a band or crown protector, shall be attached to the
headgear. The window support shall position the window in front of the face to
provide clearance for the nose and eyeglasses of the wearer.
(3) The attachment of the window to the
window support shall be secure and shall permit easy removal and replacement.
The several sizes and types of windows for a face shield shall be
interchangeable for attachment to the window support.
(4) A plastic or wire screen window without
frame shall be not less than 9 1/2 inches wide at the top and 8 1/2 inches wide
at the bottom, measured over its curved surfaces when attached and in position
on the window support, and not less than 6 inches high. A window, when used in
a frame, shall not be less than 4 inches wide and 2 inches high, and the frame
shall conform to the dimensions specified for a window without a frame. A
plastic window shall be not less than 0.040 inch nominal thickness.
(5) The exposed borders of a wire screen
window shall be suitably bound or otherwise finished to eliminate sharp, rough,
or unfinished edges. A wire screen window shall not be less than 20-mesh
screen.
(6) A window support shall
be pivotally attached to the sides of the headgear to permit easy tilting,
either upward or downward, of the supporting member and of the window attached
thereto. The window shall be capable of being tilted sufficiently upward so
that the center of its bottom edge shall be out of the line of horizontal
vision. The tension of the tilting mechanism shall be sufficient to hold the
window without slippage in either the up or down position.
Notes
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