ISO 16063-21-2003 PDF

Full title and description

ISO 16063-21:2003 — Methods for the calibration of vibration and shock transducers — Part 21: Vibration calibration by comparison to a reference transducer. This International Standard specifies procedures for calibrating rectilinear vibration transducers by comparison with a reference (standard) transducer under laboratory and, where applicable, field conditions.

Abstract

ISO 16063-21:2003 describes calibration of rectilinear vibration transducers by comparison, primarily using direct comparison to a transducer calibrated by primary methods. It specifies procedures for performing calibrations in the frequency range from 0,4 Hz to 10 kHz (with notes on application outside that range), and gives methods for evaluating the expanded uncertainty of calibration results and for use of check standards.

General information

• Status: Published / Valid (confirmed through periodic review; maintained by ISO).
• Publication date: August 2003 (Edition 1, 2003).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 17.160 — Vibrations, shock and vibration measurements.
• Edition / version: Edition 1 (2003); amended (see Amendments 2016 and 2024).
• Number of pages: 29 pages (main document).

Scope

Specifies calibration procedures by comparison for rectilinear vibration transducers, intended for laboratory conditions but applicable to some field situations. The standard covers calibration methods in a nominal frequency range from 0,4 Hz to 10 kHz (with guidance for extending beyond that range), treatment of significant uncertainty contributions, and the use of check standards. It is intended to provide traceable calibration results referenced to primary methods or to a reference transducer calibrated by those primary methods.

Key topics and requirements

• Comparison calibration method: procedures for comparing the device under test with a reference transducer mounted on the same exciter system.
• Frequency coverage: nominal operation and example systems described for 0,4 Hz to 10 kHz (with notes on practical system limits and extension possibilities).
• Reference transducer requirements: guidance on reference transducer calibration and uncertainty (examples given for tight uncertainty when using primary-calibrated references).
• Environmental and mounting conditions: recommended environmental ranges, mounting surface flatness and perpendicularity, and their influence on uncertainty budgets.
• Uncertainty evaluation: method to identify and combine significant uncertainty contributors to produce an expanded uncertainty for the calibration result.
• Use of check standards and traceability: procedures for routine checks and maintaining a calibration hierarchy traceable to primary methods.
• Annexes and practical examples: examples of measuring systems and uncertainty considerations provided to support implementation.

Typical use and users

Primary users are calibration and testing laboratories, national metrology institutes, manufacturers of vibration transducers and amplifiers, and quality/engineering departments that require traceable vibration measurements. The standard is used to establish routine calibration procedures, produce calibration certificates and uncertainty statements, and to ensure comparability of vibration transducer calibrations across laboratories.

Related standards

ISO 16063-21 is part of the ISO 16063 series (methods for calibration of vibration and shock transducers). It references primary-method documents such as ISO 16063-11 (primary calibration methods) and replaces/updates content that was in earlier standards (for example replacing aspects from ISO 5347-3:1993). Corrigenda and amendments (ISO 16063-21:2003/Cor 1:2009, Amd 1:2016, Amd 2:2024) provide editorial/technical updates.

Keywords

vibration calibration, comparison calibration, reference transducer, vibration transducers, accelerometer calibration, uncertainty evaluation, metrology, ISO 16063.

FAQ

Q: What is this standard?

A: ISO 16063-21:2003 is an ISO International Standard that defines methods for calibrating rectilinear vibration transducers by comparison with a reference transducer.

Q: What does it cover?

A: It covers comparison calibration procedures (mounting, measurement systems, data to be recorded), typical frequency ranges (nominally 0,4 Hz to 10 kHz), evaluation of measurement uncertainty, environmental and mounting requirements, and the use of check standards.

Q: Who typically uses it?

A: Calibration laboratories, national metrology institutes, transducer manufacturers, and engineers responsible for vibration measurement and instrument traceability.

Q: Is it current or superseded?

A: The 2003 edition (Edition 1) remains the published document; it has been confirmed through ISO periodic review and has received corrigendum and amendments (Cor 1:2009, Amd 1:2016 and Amd 2:2024). Users should apply the main text together with the published corrigendum and amendments where applicable.

Q: Is it part of a series?

A: Yes — it is Part 21 of the ISO 16063 series (methods for the calibration of vibration and shock transducers), which also includes other parts such as Part 11 (primary methods) and related documents in the series.

Q: What are the key keywords?

A: Vibration calibration; comparison method; reference transducer; accelerometer; measurement uncertainty; traceability; ISO 16063.