CEN Workshop on "Raman devices calibration, verification and twinning protocols"

Standardisation of Raman devices and Raman data spectroscopy is receiving strong interest in recent years due to the broad expansion in number and type of Raman devices and the need to assure data exchange and data consistency along devices and the across different units and sampling configurations.

Raman spectroscopy is very sensitive to the actual device configuration and physical characteristics of the spectrum acquisition. A bigger differentiation in device performance and the capability to reproduce data and transfer information between devices has been recognised by the users and institutions; for these reasons there is a raising interest to find ways to harmonise data sharing and protocols to calibrate and validate Raman devices.


Two CWAs are expected to be developed under the Workshop describing protocols for the calibration and verification of Raman devices. It is expected to be ready for publication in seven months after the kick-off meeting. 


The two CWAs are planned as follows:

  • CWA 1: Raman devices calibration and verification protocols

The first planned CWA specifies a harmonization protocol for Raman devices that allows:

- Recalibration of data or devices already calibrated by the manufacturer;

- Calibration of devices without any previous calibration;

- Verification of the calibration for devices that were calibrated with this protocol in the past;

  • CWA 2: Raman device twinning protocol

The second planned CWA provides a procedure for twinning Raman spectrometers to harmonize their spectra with a reference sample. This requires that the Raman device or the acquired reference sample data has already undergone a full calibration protocol on x and y axis prior to use for twinning.


This protocol will correlate different Raman devices to obtain similar intensities, improving comparability, reproducibility and reliability, thus promoting the use of this technique in different applications and industries. The protocol is applicable to Raman devices within certain specification and within defined boundaries that are described in the document.


The Secretariat is held by UNE, the Spanish Standardization Body. The kick-off meeting will be held on 28th February 2024 virtually.


The Workshop participation will be open to all interested parties. Interested parties are kindly requested to submit comments on the draft Project Plan via the 'Commenting form' (see below) until 31st January 2024 and to register to the workshop by completing the 'registration form' (see below) and sending it by an email to the workshop secretary Mr Ivan Moya Alcon (imoya@une.org).


Download the documents:



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