Hellma is leading manufacturer of spectro-optics known for its precision, quality, and consistency.

Hellma manufacture certified reference materials based on the regulatory codes issued by NIST (National Institute of Standards and Technology), ASTM (American Society for Testing and Materials) and Pharmacopeias (Ph. Eur., USP). All certified measurement results can be traced back to NIST (photometric accuracy) or to PTB (Physikalisch-Technische Bundesanstalt) (wavelength accuracy) standard reference materials.

The two most important factors for obtaining precise spectrophotometer data are the photometric accuracy (absorbance accuracy) and wavelength accuracy of the spectrophotometer, which should be tested on a regular basis.

Accredited to DIN EN ISO 17025, Hellma is authorized to issue internationally recognized DAkkS calibration certificates. The accreditation is the key to high quality measurements, international comparability, and trust in both the work of the calibration laboratory and the transparency of results.