FprEN IEC 63041-2:2025

Piezoelectric sensors - Part 2: Chemical and biochemical sensors

Capteurs piézoélectriques - Partie 2: Capteurs chimiques et biochimiques

Piezoelektrični senzorji - 2. del: Kemični in biokemični senzorji

General Information

• Status: Not Published
• Publication Date: 05-May-2026
• ICS: 31.140 - Piezoelectric devices
• Technical Committee: CLC/SR 49 - Piezoelectric and dielectric devices for frequency control and selection
• Current Stage: 5020 - Vote circulated - Formal Approval
• Start Date: 26-Dec-2025
• Due Date: 14-Nov-2025
• Completion Date: 26-Dec-2025
• Ref Project: kSIST FprEN IEC 63041-2:2026 - Piezoelectric sensors - Part 2: Chemical and biochemical sensors

Relations

• Revises: EN IEC 63041-2:2018 - Piezoelectric sensors - Part 2: chemical and biochemical Sensors
• Effective Date: 12-Nov-2024

Overview

The international standard FprEN IEC 63041-2:2025, titled Piezoelectric sensors - Part 2: Chemical and biochemical sensors, establishes guidelines and specifications for the design, performance, and testing of piezoelectric sensors used specifically in chemical and biochemical applications. Developed by the International Electrotechnical Commission (IEC) Technical Committee 49, this document serves as the second edition, revising the 2017 version to reflect technological and industry advancements.

This standard focuses on piezoelectric sensor technologies including Bulk Acoustic Wave (BAW) and Surface Acoustic Wave (SAW) devices, which are widely employed in chemical and biochemical sensing. It defines sensor elements, interface layers, sensitive coatings, and performance metrics to help manufacturers and users ensure consistency, reliability, and quality in sensor development and deployment.

Key Topics

• Sensor Types
  The standard covers the two primary piezoelectric sensor elements used in chemical and biochemical sensing:

  • Bulk Acoustic Wave (BAW) resonators, including quartz crystal microbalances (QCM)
  • Surface Acoustic Wave (SAW) resonators and delay-line types

• Sensor Construction and Functionality
  Descriptions include conceptual diagrams of sensor elements showing layers such as:

  • Interface layer
  • Sensitive or receptive layer (target recognition materials)
    These layers impact performance by interacting selectively with chemical or biochemical analytes.

• Performance Specifications
  Key aspects addressed include:

  • Selectivity versus nonspecific, unselective reactions
  • Factors improving sensor stability and accuracy
  • Calibration techniques and measurement methods for frequency response and resonance behavior

• Testing and Reliability
  The standard outlines test procedures, delivery conditions, and quality/reliability requirements ensuring sensor robustness and repeatability in various environmental conditions.

• Technical References and Terminology
  The document incorporates updated terms consistent with IEC TS 61994-5:2023 and includes extensive normative references to related IEC and ISO standards, facilitating harmonized understanding and application.

Applications

Piezoelectric chemical and biochemical sensors adhering to IEC 63041-2:2025 find critical roles in:

• Environmental Monitoring
  Detection of gases, pollutants, and hazardous chemicals with high sensitivity and specificity.

• Medical Diagnostics
  Biosensor platforms leveraging biochemical recognition layers for point-of-care testing and immunosensing.

• Industrial Process Control
  Real-time monitoring of chemical compositions, contamination, and quality assurance in manufacturing lines.

• Food Safety and Quality
  Authentication, spoilage detection, and contaminant monitoring using sensor arrays based on piezoelectric principles.

• Research and Development
  Enabling innovative sensor designs with improved interface coatings and reaction mechanisms for advanced sensing applications.

Related Standards

FprEN IEC 63041-2:2025 complements and references multiple international standards, critical for comprehensive sensor design and testing:

• IEC 60068: Environmental testing of electrical components
• IEC 60122: Quartz crystal units for frequency control and selection
• IEC 60642: Piezoelectric ceramic resonators
• IEC 61837: Surface-mounted piezoelectric devices
• IEC TS 61994: Glossary of piezoelectric and dielectric device terms
• ISO 2859: Sampling procedures for inspection by attributes
• ISO 11843: Capability of detection methodologies
• ISO/IEC Guide 99: International vocabulary of metrology (VIM)

These standards collectively ensure that designers and manufacturers follow best practices in the development and application of piezoelectric sensors for chemical and biochemical sensing.

---

Adopting the IEC 63041-2:2025 standard enables stakeholders to enhance sensor accuracy, reliability, and interoperability in critical sectors, promoting innovation aligned with international quality benchmarks. For more information and access to documentation, users can visit the IEC Online Standards Development platform.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 63041-2:2025
01-junij-2025
Piezoelektrični senzorji - 2. del: Kemični in biokemični senzorji
Piezoelectric sensors - Part 2: Chemical and biochemical sensors
Capteurs piézoélectriques - Partie 2: Capteurs chimiques et biochimiques
Ta slovenski standard je istoveten z: prEN IEC 63041-2:2025
ICS:
31.140 Piezoelektrične naprave Piezoelectric devices
oSIST prEN IEC 63041-2:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 63041-2:2025
oSIST prEN IEC 63041-2:2025
49/1493/CDV
COMMITTEE DRAFT FOR VOTE (CDV)

PROJECT NUMBER:
IEC 63041-2 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-04-11 2025-07-04
SUPERSEDES DOCUMENTS:
49/1473/CD, 49/1491/CC
IEC TC 49 : PIEZOELECTRIC, DIELECTRIC AND ELECTROSTATIC DEVICES AND ASSOCIATED MATERIALS FOR FREQUENCY
CONTROL, SELECTION AND DETECTION
SECRETARIAT: SECRETARY:
Japan Mr Masanobu Okazaki
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 47E
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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TITLE:
Piezoelectric sensors - Part 2: Chemical and biochemical sensors

PROPOSED STABILITY DATE: 2028
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Link to Committee Draft for Vote (CDV) online document:
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oSIST prEN IEC 63041-2:2025
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CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
3.1 General . 9
3.2 Types of chemical and biochemical sensors . 9
4 Specifications . 10
4.1 General . 10
4.2 Conceptual diagram of BAW sensor elements and cells . 10
4.3 Conceptual diagram of SAW sensor elements and cells . 10
4.4 Key points of specifications . 11
4.4.1 General . 11
4.4.2 Interface layer . 11
4.4.3 Sensitive or receptive layer (target recognition material) . 11
4.4.4 Nonspecific and unselective reactions . 11
4.5 Improved sensor performance . 11
4.6 Technical documents . 12
5 Delivery conditions . 12
6 Quality and reliability . 12
7 Test and measurement procedures . 12
Annex A (informative) Chemical reaction in sensor cells . 13
A.1 Reference values before and after a reaction . 13
A.2 Typical formulae . 13
A.2.1 General . 13
A.2.2 BAW (AT-cut QCM) . 13
A.2.3 SAW . 14
A.3 Calibration . 18
Bibliography . 19

Figure 1 – Conceptual diagram for chemical and biochemical sensor elements and
cells of BAW resonator type (side view) . 10
Figure 2 – Conceptual diagram for chemical and biochemical sensor elements and
cells of SAW resonator type (side view) . 10
Figure 3 – Conceptual diagram for chemical and biochemical sensor elements and
cells of SAW delay-line type (top view) . 11
Figure 4 – Conceptual diagram for SAW chemical and biochemical sensor elements
and cells with three-layer reaction region on a propagation surface (side view) . 11
Figure A.1 – Frequency-time characteristics . 13
Figure A.2 – Conceptual resonance response of an SAW sensor cell . 13

oSIST prEN IEC 63041-2:2025
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Piezoelectric sensors - Part 2: Chemical and biochemical sensors –

FOREWORD
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International Standard IEC 63041‑2 has been prepared by subcommittee 13: Sensor devices
and systems, of IEC technical committee TC 49: Piezoelectric, dielectric and electrostatic
devices and associated materials for frequency control, selection and detection. It is an
International Standard.
This second edition cancels and replaces the first edition published in 2017. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The term “SOURCE” of the definition has been added based on IEC TS 61994-5:2023.
The text of this International Standard is based on the following documents:
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
Draft Report on voting
49/XX/FDIS 49/XX/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English [change
language if necessary].
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63041 series, published under the general title Piezoelectric
sensors, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
oSIST prEN IEC 63041-2:2025
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INTRODUCTION
Further reading:
IEC 60068 (all parts), Environmental testing
IEC 60122-1, Quartz crystal units of assessed quality – Part 1: Generic specification
IEC 60122-2-1, Quartz crystal units for frequency control and selection – Part 2: Guide to the
use of quartz crystal units for frequency control and selection – Section One: Quartz crystals
for microprocessor clock supplyIEC 60122-1, Quartz crystal units of assessed quality - Part 1:
Generic specification
IEC 60444-9, Measurement of quartz crystal unit parameters – Part 9: Measurement of spurious
resonances of piezoelectric crystal units
IEC 60642, Piezoelectric ceramic resonators and resonator units for frequency control and
selection – Chapter I: Standard values and conditions – Chapter II: Measuring and test
conditions
IEC 60679 (all parts), Quartz crystal controlled oscillators of assessed quality
IEC 60758:2008, Synthetic quartz crystal−Specifications and guidelines for use
IEC 60862-1, Surface acoustic wave (SAW) filters of assessed quality – Part 1: Generic
specification
IEC 61240:2016, Piezoelectric devices – Preparation of outline drawings of surface mounted
devices (SMD) for frequency control and selection – General rules
IEC 61760 (all parts), Surface mounting technology
IEC 61837 (all parts), Surface mounted piezoelectric devices for frequency control and
selection – Standard outlines and terminal lead connections
IEC TS 61994 (all parts), Piezoelectric, dielectric and electrostatic devices and associated
materials for frequency control, selection and detection – Glossary
IEC 62276:2016, Single crystal wafers for surface acoustic wave (SAW) device applications –
Specifications and measuring methods
ISO 2859-1:1999, Sampling procedures for inspection by attributes – Part 1: Sampling schemes
indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 11843-1:1997, Capability of detection – Part 1: Terms and definitions
ISO 11843-2:2000, Capability of detection – Part 2: Methodology in the linear calibration case
ISO/IEC Guide 99:2007, International vocabulary of metrology – Basic and general concepts
and associated terms (VIM)
KING, W.H. Jr. Piezoelectric sorption detector. Analytical Chemistry 36 (9), 1964, 1735 -1739
SAUERBREY, G. Verwendung von Schwingquarzen zur Wägung dünner Schichten und zur
Mikrowägung. Z. Phys
...