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SSPC-Guide 12 <br />June 1, 1998 <br />Editorial Revisions November 1, 2004 <br />used to monitor the atmosphere must be ciassified as intrinsi- <br />cally safe or Underwriters' Laboratories (UL) or Factory Mutual <br />(FM) approved for Class I, Division 1 atmospheres. <br />A.5 HAZARDOUS LOCATIONS, CLASS I AND CLASS II <br />A.5.1 Explosion proof lighting will be used whenever <br />painting with a paint containing combustible solvents or <br />performing any operation which introduces combustible <br />compounds into a confined space. <br />A.5.2 All explosion proof lighting fixtures used must be <br />designed to comply with the requirements of NFPA 70. <br />A.5.3 All retated connectors must be rated in the same <br />manner or be located outside the hazardous location/work <br />space. <br />9-52 530 <br />