Asme Ptc 19.11 Pdf !!exclusive!! -

Dead legs are forbidden. The standard requires continuous flow-through sampling systems, with manual or automatic purging mechanisms to remove stagnant fluid before analysis.

: Details requirements for cooling, pressure reduction, and flow control. It includes specifications for sample coolers, valves, and filters to bring high-temperature/high-pressure samples to safe, measurable states. Asme Ptc 19.11 Pdf

If you are downloading the standard, here are the five sections you will rely on most heavily. Dead legs are forbidden