ASME PTC 19.11-2008 (2018) PDF

Full title and description

ASME PTC 19.11-2008 (R2018) — Steam and Water Sampling, Conditioning, and Analysis in the Power Cycle. This Performance Test Code specifies methods and instrumentation for testing boiler makeup and feedwater, steam, and condensate in relation to performance testing, acceptance testing, and continuous performance monitoring in power-cycle plants.

Abstract

Provides guidance on selection of sample points, procedures for obtaining representative samples (water, saturated steam, superheated steam), transport and conditioning of samples, sample analysis and instrumentation, and data acquisition/quality for performance testing and cycle chemistry monitoring in power plants. Includes non‑mandatory appendices on leakage detection and throttling calorimeters.

General information

• Status: 2008 edition; reaffirmed in 2018 and placed on stabilized maintenance (designated PTC 19.11-2008 (R2018)).
• Publication date: 2008 (R2018 reaffirmation).
• Publisher: American Society of Mechanical Engineers (ASME).
• ICS / categories: Water quality and sampling (ICS 13.060 series) and energy/power engineering (ICS 27.000 family — e.g., boilers/burners and power stations).
• Edition / version: ASME PTC 19.11-2008 (R2018).
• Number of pages: 60 pages (ASME product information).

Scope

The Code specifies and discusses methods and instrumentation for testing boiler makeup and feedwater, steam, and condensate as required by Performance Test Codes for one‑time acceptance testing and for continuous performance monitoring. It also provides guidance for the design and operation of sampling systems used to monitor cycle chemistry in power plants and recommends methods and equipment useful for other influent/effluent streams of the plant.

Key topics and requirements

• Object, scope, application and discussion of uncertainty considerations for sampling and analysis.
• Sample point and analysis selection criteria across thermal power cycles and water‑treatment schemes (makeup, condensate, deaerator, feedwater, steam generator water, saturated and superheated steam, etc.).
• Procedures for obtaining representative samples (water, isokinetic sampling, steam sampling) and recommended sample handling techniques.
• Transporting samples: sample line construction, deposition control, and sample line practices for liquid and steam samples.
• Sample conditioning: materials, valves and fittings, sample coolers, flow meters, filters, pressure/temperature gauges, pumps, and conditioning methodology.
• Sample analysis and instrumentation: analytical methods, definitions, and suitable instrumentation for common water and steam parameters.
• Data acquisition, data quality, storage and analysis practices relevant to performance testing and ongoing monitoring.
• Nonmandatory appendices covering leakage detection and throttling calorimeter considerations.

(Topics and Table of Contents summarized from the standard.)

Typical use and users

Used by power‑plant management, plant engineers, chemists, operators, test engineers, and consultants involved in performance testing, acceptance testing, condition monitoring and cycle chemistry control. Typical applications include establishing representative sampling systems, defining sampling/conditioning procedures for acceptance tests, and documenting analysis/QA practices for performance test codes.

Related standards

Related documents include other ASME Performance Test Codes (PTC) for steam generators and turbines, guidance on test uncertainty (ASME PTC 19.1 Test Uncertainty), and industry standards and practices for sampling and analysis such as relevant ASTM and ISO sampling guides referenced by PTC 19.11. The standard is also listed as a reference for or is referenced by related standards dealing with sampling and water/steam analysis.

Keywords

steam sampling, water sampling, sample conditioning, feedwater, condensate, power cycle, sample transport, sample analysis, cycle chemistry, performance testing, PTC 19.11.

FAQ

Q: What is this standard?

A: ASME PTC 19.11-2008 (R2018) is a Performance Test Code that provides recommended methods for steam and water sampling, sample conditioning, and analysis in power‑cycle plants to support performance testing and cycle chemistry monitoring.

Q: What does it cover?

A: It covers selection of sample points, procedures for obtaining representative samples (liquid and steam), transport and conditioning of samples, recommended materials and equipment, analytical methods and instrumentation, and data acquisition and quality considerations; nonmandatory appendices address leakage detection and throttling calorimeter use.

Q: Who typically uses it?

A: Power‑plant managers, plant/chemical engineers, test engineers, laboratory analysts, and operators responsible for acceptance testing, continuous performance monitoring, and cycle chemistry control.

Q: Is it current or superseded?

A: The document is the 2008 edition and was reaffirmed in 2018 (designated PTC 19.11-2008 (R2018)). ASME indicates this version has been placed on stabilized maintenance and remains the active published edition until formally revised or replaced. Users should check ASME for any later revisions or errata before use.

Q: Is it part of a series?

A: Yes — PTC 19.11 is part of the ASME PTC series addressing performance testing and supporting documents; it is closely related to other PTCs (for example PTC 19.1 on test uncertainty) and to national/international sampling and water‑quality guidance referenced within.

Q: What are the key keywords?

A: Steam sampling, water sampling, sample conditioning, sample transport, feedwater, condensate, power cycle, analysis, performance testing, cycle chemistry.