inside battery limits (isbl)

de: Innerhalb der Anlagengrenze

Inside battery limits (ISBL) is a term which generally describes the contents located within the boundaries of a geographical block of a process plant or unit. For estimating purposes, all the machinery and equipment (M&E), construction commodities (piping, instruments, electrical, etc.), and buildings within the designated boundaries of the process unit are considered to be inside battery limits.


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