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TM 10-6640-233-10 1-7. General Precautions.  The following are general safety precautions that need to be observed by all operators of the AOAP Mobile Laboratory. ·    Always be mindful to tests in progress.  Never allow horseplay or loud talking that would divert the attention of laboratory technicians.  If it is necessary to leave the laboratory or to leave a test in progress, make certain no safety hazard will result because of your absence.     Do not attempt to perform tests simultaneously unless each test can be given the required attention. ·    Whenever in doubt concerning any operation, consult your supervisor. ·    Do not attempt unauthorized shortcuts to save time, as they generally are not in accordance with safe laboratory procedures. ·    Be  prepared  for  any  emergencies  which  may  arise,  and  be  familiar  with  the  proper  action  to  take  in  event  of emergencies. ·    When  ending  daily  operations,  make  a  thorough  and  orderly  check  of  laboratory,  equipment,  and  facilities  to ensure that no hazards may develop during the time the laboratory is unattended. 1-8. Preventing Fires.  The following fire prevention rules must be observed in all laboratory procedures: ·    Do not smoke in the laboratory. ·    Never leave open flames or heating elements unattended. ·    Never   pour   hot   liquids   into   drain.      Set   aside   hot   liquids   to   cool   thoroughly   in   covered   containers   before discarding. ·     Make sure that chemicals which may react together to produce dangerous fumes, fires, or explosion are stored in their proper places. ·    Make  sure  that  volatile  liquids  and  flammable  products  are  kept  away  from  heat  sources,  open  flames,  direct sunlight, and electrical switches. ·    Make certain that there is no open flame or exposed heating element nearby when pouring highly volatile liquids. ·    Clean up chemical and liquid spills immediately. ·    Always pour acid into water; never pour water into acid. ·    Keep oily rags in a metal, airtight, closed container.  Do not store oily rags in cabinets or drawers. ·    Make certain laboratory is adequately ventilated. ·    Check fire fighting equipment periodically to make certain it is properly serviced and ready for use.  This is done by checking seals, tags, pressure gages, and hoses. 1-2


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