ASME PTC 19.1 covers Measurement Uncertainty for all instruments. PTC 19.11 refers to 19.1 for uncertainty analysis but is specifically for steam/water sampling. Do not substitute one for the other.
Defines which power cycles are covered (fossil, nuclear, combined cycle) and outlines the limits of the testing procedures. Asme Ptc 19.11 Pdf
For large power plants or O&G companies, your engineering department likely has a corporate subscription. Contact your document control manager or QA department to request a copy of the current revision. ASME PTC 19
Hot steam or water (up to supercritical pressures) must be cooled to <40°C (104°F) and depressurized to near atmospheric before reaching the online analyzers. This is done via a or sample conditioning panel . Defines which power cycles are covered (fossil, nuclear,
Books like Steam Plant Operation (Everett Woodruff) or Power Plant Instrumentation (Krishnaswamy) summarize the requirements of PTC 19.11 in plain English, though they lack the detailed formulas.