Equipment approved as aquot;intrinsically safeaquot; for use in specific hazardous atmospheres is defined as incapable of releasing ... Suggestions for maintenance of electrical equipment for hazardous locations: (a) Turn off the lock -oui power before opening housings. ... Be sure that there are no nicks or grit in the ground- joint surfaces. ... (e) Do not paint over nameplates. ... (h) Some drains in sealed conduit work automatically, but those which do not must be periodically drained manually.
|Title||:||Safety in the chemical laboratory|
|Author||:||Norman V. Steere|