What is the major difference in a CML and the examination point?
How are they different and practically in what applications are they defined & used when we talk about pressure vessels?
CML & Examination Point
Re: CML & Examination Point
Definition 3.1.11 as per API 572 states examination point as:
An area within a CML defined by a circle having a diameter not greater than 3 in. (75mm) for pressure vessels.
CMLs may contain multiple examination points, for example, a vessel nozzle may be a CML and have multiple
examination points (e.g. an examination point in all four quadrants of the CML on the nozzle).
This means Dlew that examination point is primarily within a CML.
An area within a CML defined by a circle having a diameter not greater than 3 in. (75mm) for pressure vessels.
CMLs may contain multiple examination points, for example, a vessel nozzle may be a CML and have multiple
examination points (e.g. an examination point in all four quadrants of the CML on the nozzle).
This means Dlew that examination point is primarily within a CML.