Electrical equipment in hazardous areas the participation of operations, maintenance, safety, electrical and instrumentation professionals, the use of process diagrams and material flows, MSDS and any pertinent documents, information and knowledge to determine the hazards and their extent and the countermeasures to be employed. Area classification documentations are reviewed and updated to reflect process changes. Soon after the introduction of electric power into coal mines, it was discovered that lethal explosions could be initiated by electrical equipment such as lighting, signals, or motors. The hazard of fire damp or methane accumulation in mines was well known by the time electricity was introduced, along with the
Belsen Was a Gas demo version features very faint, reverbed vocals. A different version of the song – titled simply "Belsen Was a Gas Demo 2" – was released as part of a single box on 19 April 2014. Belsen Was a Gas "Belsen Was a Gas" is a highly controversial song by the British punk rock band the Sex Pistols. The song is about one of the Nazi concentration camps in Nazi Germany, Bergen-Belsen, which was liberated by British troops in 1945. ASCAP credits the songwriters as John Beverly (Sid Vicious), Paul Cook, Steve Jones, John Lydon but Sid Vicious is often credited