ISO
ISO 21508
Earned Value Management in Project and Programme Management
The vocabulary and method behind measuring progress by what has been earned rather than what has been spent or claimed. The piping relevance is narrow but sharp: it supplies the discipline of a defined measurement rule agreed before work starts, which is what stops a weekly progress figure from being an opinion. In piping that rule is almost always expressed in diameter-inch.
This is an explanation, not the standard. PipingInspector is not affiliated with ISO and reproduces no part of the document. Always work to the current edition of the standard itself and to your project specification.
Where it is applied on this site
- Erection sequence and constructability — why the isometric order is not the build orderPiping
- Diameter-inch and progress measurement — the unit piping is paid inPiping
- Construction productivity factors — why the same weld takes three times as longPiping
- Site records and the daily diary — writing for somebody who will not believe youPiping
- Variations, backcharges and notice — the difference between noticing and notifyingPiping