Why is it necessary to take sample analyses in segments of a long material pipeline before performing hot work, after thoroughly isolating the area?
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Why is it necessary to take sample analyses in segments of a long material pipeline before performing hot work, after thoroughly isolating the area?
This post was last edited by Sun Yang_aIYsT on 2023-8-21 at 11:37. Segment-based sampling analysis can, to some extent, compensate for the issue of non-representative sampling points; however, the number of segments and the distance between them depend on actual conditions – factors such as the diameter of the pipeline, its routing, and the physical and chemical properties of the fluid involved all need to be taken into account.
Prevent fire and explosion accidents{:9001:}
In long pipelines, the gas components in different sections vary
The problem with testing only one point in longer pipelines is that the sample taken lacks representativeness; therefore, it is necessary to divide the pipeline into sections