For now, the PDF remains the gold standard for portability and reference in the field.
Specifying specialized nozzles that extract steam at the same velocity as the main flow, preventing "sorting" of particles that would skew analysis. Sample Conditioning: Asme Ptc 19.11 Pdf
Samples extracted from boilers often exceed temperatures of 300°C (572°F) and pressures of 100 bar. Analyzers require samples to be at or near ambient room temperature. For now, the PDF remains the gold standard