While the full title mentions water sampling, the industry often references PTC 19.11 in the context of the Throttling Calorimeter method. Before the widespread adoption of this standard, measuring the quality of wet steam was inconsistent across facilities. ASME PTC 19.11 codified a scientific, repeatable method that allows engineers to calculate steam quality by measuring the temperature drop across a throttling orifice.

  • Worked examples and illustrative calculations (common to many PTC 19.11 documents)
  • Annexes with guidance, tables, and possible templates for uncertainty budgets
  • Bibliography and references

    • During a formal performance test, failure to follow PTC 19.11 can void test results. In one documented case, a 500 MW coal plant rejected a new steam generator because the sampling system did not meet PTC 19.11’s transport time limits—leading to $2 million in re-testing and system redesign.

    Asme Ptc 19.11 Pdf Page

    While the full title mentions water sampling, the industry often references PTC 19.11 in the context of the Throttling Calorimeter method. Before the widespread adoption of this standard, measuring the quality of wet steam was inconsistent across facilities. ASME PTC 19.11 codified a scientific, repeatable method that allows engineers to calculate steam quality by measuring the temperature drop across a throttling orifice.

  • Worked examples and illustrative calculations (common to many PTC 19.11 documents)
  • Annexes with guidance, tables, and possible templates for uncertainty budgets
  • Bibliography and references

    • During a formal performance test, failure to follow PTC 19.11 can void test results. In one documented case, a 500 MW coal plant rejected a new steam generator because the sampling system did not meet PTC 19.11’s transport time limits—leading to $2 million in re-testing and system redesign. Asme Ptc 19.11 Pdf