ASME PTC 19.2 does not exist in isolation. It is part of a larger ecosystem of standards. For a complete performance testing regime, it is often used alongside other PTC 19 series documents, such as:
If you have a specific technical question about applying the standard, ASME provides an official process. Formal interpretations of any PTC code requirement can only be obtained by submitting a written request to the Secretary of the PTC Standards Committee.
The ASME PTC 19 series outlines the governing requirements for all instrumentation used in an ASME Performance Test to ensure it falls within a specified uncertainty band. PTC 19.2, specifically, is the "supplement" that focuses solely on pressure. The choice of method, instruments, required calculations, and corrections described in the standard depends on the purpose of the measurement, the allowable uncertainty, and the characteristics of the equipment being tested. This flexibility ensures the standard remains relevant across diverse testing scenarios.
ASME PTC 19.2 is a performance test code (PTC) that provides guidelines for the evaluation of instruments and measuring systems used in various industrial applications. The code is part of the ASME Performance Test Codes series, which aims to provide standardized procedures for testing and evaluating the performance of mechanical equipment and systems. asme ptc 192 pdf
The standard consists of several key components, including:
Descriptions of instrument types, their design, accuracy, and applicable pressure ranges. Calibration:
: It defines the required characteristics of instruments to minimize measurement error. ASME PTC 19
When purchasing or downloading the official document, engineers should look through authorized standard networks: Pressure Measurement - PTC 19.2 - ASME
Methods for calculating the "quality" or potential error of the tests. Nonmandatory Appendices:
is a primary standard developed by the American Society of Mechanical Engineers (ASME) that provides comprehensive instructions for the accurate measurement of pressure. Officially titled "Pressure Measurement Instruments and Apparatus," it serves as a supplement to the broader ASME Performance Test Codes (PTC), ensuring that pressure data used to evaluate industrial equipment is reliable and consistent. Overview of ASME PTC 19.2 Formal interpretations of any PTC code requirement can
ASME PTC 19.2 is the backbone of pressure measurement for performance testing. It is universally recognized in power generation, oil and gas, chemical processing, and HVAC industries. Inconsistent measurement methods across different plants, suppliers, and engineering firms are prevented by adhering to this standard. PTC 19.2 helps resolve technical disputes, as its defined methods and uncertainty calculations provide an objective reference. Its guidance is essential for ensuring reliable and comparable performance test results.
B40.100 covers general pressure gauge requirements (sizes, dials, connections). PTC 19.2 is strictly for performance testing, not everyday process measurement.
If you only need an overview, ASME occasionally provides free (table of contents and scope) on their site.
Methods for determining random and systematic standard uncertainty in pressure measurements.
: Platforms like ANSI, IHS Markit, or Techstreet sell licensed PDF copies for corporate or individual use.
