4.2 General Requirements
label. Every laser product shall be provided with
a tag or label permanently affixed to the device housing so that it is readily
accessible to view. Such a tag or label shall contain the full name and
address of the manufacturer, the laser model, and the place, month, and year
of manufacture. These may not be expressed in code.
label. In lieu of the certification label required
by 21 CFR 1010.2, every laser product exempted under 76EL-01 DOD shall be
provided with a tag or label permanently affixed to the device housing so that
it is readily accessible to view. The label shall contain the following
electronic product has been exempted from FDA radiation|
performance standards prescribed in Title 21, Code
Regulations, Chapter I, Subchapter J, pursuant
to Exemption No.
76EL-01 DOD issued on 26 July 1976.
This product should not be used
without adequate protective
4.2.3 Location of
controls. Each laser product shall have
operational and adjustment controls located so that human exposure to laser
radiation in excess of the appropriate MPE is unnecessary for the operation or
adjustment of such controls.
output. Laser product design features shall
preclude unintentional laser output (e.g. spontaneous firing).
4.2.5 Extraneous radiation and beam
irregularities. All lasers and associated optics
will be designed so that external secondary beams are not generated unless
necessary for the performance of the intended function(s). focused beams, hot
spots and collateral radiation will be minimized. Laser systems which employ
frequency shifting or harmonic multipliers to alter the fundamental output
wavelength shall reduce unnecessary emissions to below the MPE.
modes. The laser system shall be designed to
preclude unintentional self-oscillation, mode-locking, double-pulsing, or
unwanted modes, when practicable. If these modes cannot be eliminated, the
laser will be classified as per the worst possible accessible emission level.
Interlocks. Interlocked protective housings
shall be provided to protect personnel from high voltage sources and
unnecessary laser and collateral radiation in excess of the AELs. Aural or
visual indication of interlock defeat shall be provided. Interlocks shall
return to their normal operation when the access cover door is returned. When
laser radiation exceeding the ANSI AEL for Class 1 is accessible, visual
indicators will be readily visible while wearing suitable laser protective
ports. Viewing ports and display screens which
allow the operator to view laser radiation shall attenuate the laser radiation
to limit personnel exposure to below the appropriate MPE.
sights. Laser product pointing or viewing optics
with a magnifying power exceeding 1.0 shall include a built-in laser safety
filter within the optical train which protects the operator from reflections
from specular surfaces or exposure from force-on-force training. Such filters
should not significantly impair visibility and shall be permanently attached
or designed so that the optical train cannot be assembled without the filter.
The laser system or individual sight shall be marked to indicate the level and
type of protection afforded in the viewing optics either by 00 and wavelength
or by the use of a Filter Marking Code consisting of a single-letter laser
safety code on the first line and an individual filter code on the second line
consisting of a two-letter design code, a five-digit manufacturing code and a
five digit lot number. Minimum ODs for the single-letter laser safety
codes for both magnifying and non-magnifying direct-view optics are provided
2 and Table 3, respectively. These codes may
not fully describe the level of laser protection in the sight.
hazards. Electronic systems shall be designed in
accordance with MIL-STD-454. Other hazards associated with the laser and its
operation shall be controlled by engineering in accordance with MIL-STD 882.
Paragraph A.2.2, Appendix A herein, lists some additional hazards which must
4.2.11 Laser warning
labels. Laser warning labels for exempted lasers
shall provide clear instructions to the operators, maintainers and potential
bystanders to preclude laser injury. Warning labels developed for industrial
and laboratory environments may lead to confusion when read by personnel using
lasers in an outdoor environment. Section 4.3 contains further details
pertaining to these military labels.