It specifies the requirements for test equipment and procedures to ensure that tests are conducted uniformly and reliably.
Not a glossy code. Not a famous standard like Boiler & Pressure Vessel. No. This one is the test uncertainty standard — and it is quietly terrifying. asme ptc 191 pdf
ASME PTC 19.1-2018 - Test Uncertainty. Historical. ASME PTC 19.1-2018. Test Uncertainty. The object of this Standard is to define, ANSI Webstore It specifies the requirements for test equipment and
: Instructions for how these individual uncertainties "propagate" through calculations to affect the final reported test result. Confidence Levels Historical
(often referred to simply as "PTC 19.1" or the "Test Uncertainty Standard") establishes the definitive methodology for evaluating and expressing uncertainty in test measurements. It serves as the underlying mathematical foundation for almost all other ASME Performance Test Codes (PTCs). The standard guides engineers in calculating the "Uncertainty Interval," which defines the range within which the true value of a measurement is expected to lie. The current active version is ASME PTC 19.1-2018 .
The standard provides rigorous equations to combine these into and then Expanded Uncertainty (usually at 95% confidence).
: Procedures for assessing uncertainties in individual measurements and test methods. Propagation