...with instruments and equipment or wiring shall mean such instruments and equipment or wiring that is incapable of releasing sufficient electrical or thermal...ignition of a specific hazardous atmospheric mixture hi its most easily ignited concentration. Abnormal conditions will include accidental damage to any...

...of the most easily ignitable composition. "Intrinsically safe" means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitable composition. "MESA"...

...mixture of the most easily ignitable composition. Intrinsically safe means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitable composition. MESA...

...of the most easily ignitable composition. "Intrinsically safe" means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitable composition. "MESA"...

...Intrinsically safe equipment and circuitry means equipment and circuitry that are incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of the most easily ignitable composition. (n) Fail safe means that the circuitry...

...of the most easily ignitible composition. "Intrinsically safe" means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitible composition. "Mobile...

...of the most easily ignitible composition. "Intrinsically safe" means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitible composition. "Mobile...

...Act requires the use of the A-weighted network--dBA, slow response. ""Incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitable composition. FIGURE...

...of the most easily ignitible composition. "Intrinsically safe" means incapable of releasing enough electrical or thermal energy under normal or abnormal conditions to cause ignition of a flammable mixture of methane or natural gas and air of the most easily ignitible composition. "Mobile...

...502-9. 0) Intrinsically safe equipment and wiring are incapable of releasing sufficient electrical energy under normal or abnormal conditions to cause...ignition of a specific hazardous atmospheric mixture. Equipment and associated wiring approved as intrinsically safe may be installed in the hazardous location...