IEC 61094-2:2009/AMD1:2022

IEC 61094-2:2009/AMD1:2022 is a supporting amendment to the document on electroacoustics and measurement microphones, focused on the primary method for pressure calibration of laboratory standard microphones by the reciprocity technique. For laboratories and engineering teams, it matters because microphone calibration quality directly affects measurement traceability, technical validation, and documented evaluation in acoustic test workflows. Used alongside IEC 61094-2:2009, this amendment helps maintain alignment with the current requirements for calibration practice and conformity assessment preparation.

Overview of IEC 61094-2:2009/AMD1:2022

This publication modifies the parent document IEC 61094-2:2009 and should be read as a companion reference rather than a standalone technical specification. Its scope is tied to the calibration of laboratory standard microphones using the reciprocity technique, a method commonly used where accurate pressure calibration and operational consistency are important. In practice, it supports technical review, verification activities, and quality workflows for organizations that rely on calibrated microphones in measurement systems, laboratory evaluation, and engineering documentation.

Compliance applications of IEC 61094-2:2009/AMD1:2022

IEC 61094-2:2009/AMD1:2022 is relevant in acoustic calibration environments where laboratory standard microphones are used as reference devices for testing and measurement. It may be applied in metrology laboratories, product evaluation programs, and conformity assessment work that depends on traceable pressure calibration. For procurement and compliance teams, the amendment helps identify the correct supporting document to include in technical files, calibration procedures, and documented evaluation packages when review of microphone performance or calibration method is required.

Importance of compliance with IEC 61094-2:2009/AMD1:2022

Using the amended reference helps reduce risk in calibration and testing workflows by keeping procedures aligned with the current parent document. That is important for consistency, reproducibility, and technical confidence in measurement results, especially where laboratory standard microphones support broader engineering validation or regulatory preparation. It can also strengthen procurement decisions by clarifying which document governs the calibration method, supporting quality assurance, conformity assessment, and traceable technical compliance across internal and external review processes.

• Amendment linked to IEC 61094-2:2009 for pressure calibration of laboratory standard microphones
• Relevant to reciprocity-based calibration and laboratory measurement workflows
• Useful for technical review, verification activities, and documented evaluation
• Supports conformity assessment preparation and calibration traceability