18 AAC 85.675. Exposure level limits

The maximum permissible exposure levels for laser radiation are presented in Table VII.

TABLE VII MAXIMUM PERMISSIBLE EXPOSURE LEVELS FOR LASER RADIATION AT THE CORNEA FOR DIRECT ILLUMINATION OR SPECULAR REFLECTION AT WAVE- LENGTH = 6943 A NON-Q- Q-SWITCHED SWITCHED CONTINUOUS PULSE 1 nsec,-1 PULSE 1 usec.- WAVE usec. 0.1 sec. EXPOSURES Lighting P.R.F. < 10 P.R.F. < 10 >0.1 sec. Conditions (j/cm2) (j/cm2) (W/cm2) Daylight 5.0 x 10 -8 5.0 x 10 -7 5.0 x 10 -5 3 mm pupil Laboratory 2.0 x 10 -8 2.0 x 10 -7 2.0 x 10 -5 5 mm pupil Night 1.0 x 10 -8 1.0 x 10 -7 1.0 x 10 -5 7 mm pupil

History: Eff. 9/16/71, Register 39

Authority: AS 46.03.020

AS 46.03.260

Editor's note: These levels can be adjusted for other wavelengths by using the graph of energy transmitted to and absorbed by the retina (Figures I and II). Figure II may be normalized at L 6943 A. Figure I is applicable to pulsed lasers and Figure II to c.w. lasers. The adjusted levels shall not exceed the corresponding levels in Table VII by a factor greater than ten. Maximum permissible exposure levels for the skin shall not exceed the daylight levels for the eye (Table VII) by a factor of more than 10 5 .

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