ISO/TS 21913:2022 PDF
Temperature verification method applied to dynamic fatigue testing
Temperature verification method applied to dynamic fatigue testing
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 13
- Дата публикации:
- 21 июня 2022 г.
- Издание:
- ISO TS 21913 edition 1 version 1
- ICS:
- 77.040.10
This document establishes verification procedures to determine the accuracy, speed of response, and stability of temperature measurement for materials testing equipment. These procedures are specified for the expected use in fatigue tests on metals where these characteristics are important to the fidelity of tests at high or varying temperature. The principles set out include sufficient provision for both contacting and non-contacting methods of temperature measurement. This document is for the end-to-end verification of registered value compared with “true” specimen temperature at the point of measurement. It cannot be used to specify the correct method or location of measurement. NOTE: The methodologies could be found applicable to test types beyond mechanical fatigue of metals, but that is outside the remit of this document.
Abstract
Overview
ISO/TS 21913:2022 defines a practical, end-to-end temperature verification method applied to dynamic fatigue testing. It establishes procedures to determine the accuracy, speed of response (time lag), resolution, stability and drift of temperature measurement systems used in fatigue tests on metals - especially where high or rapidly varying temperatures affect test fidelity. The specification covers both contacting and non‑contacting measurement methods and is intended for verification of the indicated temperature against the “true” specimen temperature at the point of measurement.
Key topics and requirements
- Scope and intent: Verification of temperature measurement behaviour for materials testing equipment (thermo‑mechanical fatigue and related dynamic fatigue tests), not prescribing measurement location or method.
- Measurement behaviour: Definitions and observables such as resolution, bias error, measurement drift, time lag and stabilisation time (how long readings remain affected after changes in heat flow).
- Representative verification equipment:
- Reference system requirements: resolution at least 3× better than the published verification (preferably >5×) and stability better than 1% of reading during verification. Spatial localisation of the reference measurement should be **
Технические детали
- Технический комитет
- ISO/TC 164/SC 4 - Fatigue, fracture and toughness testing
- SKU
- ISO/TS 21913:2022
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