Gives instructions on the repair, overhaul, reclamation and modification of a certified apparatus designed for use in explosive atmospheres (other than mining applications or explosive processing and manufacture..
Covers a procedure for the exposure of solar collector cover materials to the natural weather environment at elevated temperatures that approximate stagnation condition in solar collectors having a combined back and loss coefficient of less than 1.5 ..
Specifies requirements for EHDERS (extra heavy-duty electrical
rigid steel) conduits, couplings, nipples and elbows for electrical installations, including
communications and fibre optics...
Gives the requirements for E-type glass sleeving using either braided or knitted construction with a continuous flexible coating based on polyvinyl chloride or its copolymers or blends thereof..