Lasers  can  have  varying  effects  on  a  person. Effects on the eyes can range from inflammation of the cornea to corneal burn. Effects on the skin can range from accelerated skin aging to skin burn. If you use lasers at your command, be sure to follow all safety precautions  for  the  class  of  laser  in  use  and  all directions given to you by your command’s laser safety officer. For more information on the use of lasers, refer to the Navy Occupational Safety and Health (NAVOSH) Program  Manual,  OPNAVINST  5100.23,  for  shore operations;  and  the  NAVOSH  Program  Manual  for Forces  Afloat,  OPNAVINST  5100.19,  for  shipboard operations. Q6.    What common household appliance is  typically used to illustrate the tissue damage that can be done by harmful RF exposure? TAG-OUT BILL The tag-out bill is a system of documents used to save  lives  and  to  prevent  unnecessary  damage  to equipment.  It  uses  caution  tags,  danger  tags, 3-7 No. EDS Precautions 1 ALWAYS ground the workbenches where you will handle ESDS devices. 2 ALWAYS be sure that you are grounded. 3 ALWAYS check packaging and equipment technical manuals for ESD warnings and instructions. 4 ALWAYS ground the electrostatic unit package of an ESDS device or assembly before you open it. 5 ALWAYS minimize the handling of ESDS devices or assemblies. 6 ALWAYS avoid unnecessary physical movement. 7 ALWAYS hold the ESDS device or assembly through its electrostatic-free wrap, if possible, when you remove or replace it in the equipment. 8 ALWAYS touch, with your bare skin, the surface on which an ESDS device or assembly rests for at least 1 second before you pick it up. 9 ALWAYS avoid repairs that require soldering at the equipment level, if possible. 10 ALWAYS ground the leads of test equipment before you energize it and before you probe ESDS items. 11 NEVER permit ESDS devices or assemblies to come in contact with ungrounded materials. 12 Whenever you service ESDS devices, NEVER touch or handle materials that create static charges without repeating the grounding action. Table 3-6.—Electrostatic Discharge Precautions }^} } } } 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 3 x 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 10 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 FREQUENCY WAVELEGNTH (HZ) (M) COMMERCIAL POWER (60 Hz) TELEPHONE AM BROADCAST (536.1505 kHz) FM BROADCAST (88.106 Mhz) TELEVISION BROADCAST RADAR INFRARED VISIBLE LIGHT ULTRAVIOLET OPTICAL RADIATION 1 Hz 60 Hz 1 Khz 1MHz 1 Ghz 1 Thz 3Mm 3km 3m 3 cm 3mm 3nm 3A deg 3 pm } MEDICAL X-RAYS 3100 FCf03002 Figure 3-2.—The electromagnetic spectrum.