Document 36p8QgrvjE7zmqvrVmz7wK8J

Standard (8,n^epuU,e) = \ in train / Standard (pulae nr) n where n = number of pulses in train t = duration of a single pulse in the tram Standard (nr) = protection standard of one pulse having a dura tion equal to nr seconds TABLE 5 LIMITING ANGLE OF EXTENDED SOURCE WHICH MAY BE USED FOR APPLYING EXTENDED SOURCE TLV'S Exposure Duration(s) Angle X (mrad) 10 80 10-a 54 10T 37 10" 25 10 s 17 10* 22 10'3 36 10* 57 10"1 02 10 15 10 24 103 24 103 24 10* 24 TABLE 8 THRESHOLD LIMIT VALUE FOR SKIN EXPOSURE FROM A LASER BEAM Spectral Region Wave Length Exposure Time, (t). Seconds TLV UV 200 nm to 400 am 10'3 to 3 x 104 Same as Table 3 Light & Infrared A 400 nm to 1400 nm " Infrared B & C 1 4 nm to 1 mm 10`9 to 10-' 10'7 to 10 10 to 3 X 10* 10"9 to 3 X 10* 2 X 10-J J cm'3 1 1 $/ t J cm3 02W cm3 Same as Table 3 NOTE. To aid in the determination of TLV'S for exposure durations requiring calculations of fractional powers Figures 3, 4, and 6 may be used 1101