The latter A part of the twentieth Century saw the introduction of extra stringent boiler production requirements, specifically in relation to welding technology and inspection, along with the evolution of electronic Manage programs that now give an unsurpassed standard of reliability. The fashionable, micro-processor based, large-integrity, "Boiler Manage Program" (BCS) http://ricardodzuni.livebloggs.com/9675482/modern-day-packaged-boiler-operation-servicing-and-training