Traceability to international standards and regulations

Hellma Analytics reference materials for UV/Vis spectroscopy meet internationally recognized standards and provide for highest process transparency and comparability of results. The UV/Vis reference materials are manufactured and tested in our DAkkS accredited* calibration laboratory.

Accreditation* is the key to high quality measurements, international comparability and confidence in the transparency of results. UV/Vis reference materials not only help to ensure compliance before the next audit, but also provide the certainty that you will definitely get the right measurement results.

*) Accredited calibration laboratory by DAkkS according to DIN EN ISO/IEC 17025. The accreditation is valid only for the scope listed in the annex of the accreditation certificate D-K-18752-01-00.

Conformance of Hellma Analytics reference materials with the most important regulations

Material Checking of Range Ph. Eur. USP<857> ASTM
Glas Filters
Holmium Glass Wavelength accuracy UV/Vis X X X
Didymium Glass Wavelength accuracy UV/Vis/NIR X (X)  
Neutral Density Glass Wavelength accuracy Vis X X X
Liquid Filters
Holmium (Solution) Wavelength accuracy UV/Vis X X X
Cerium (Solution) Wavelength accuracy UV X X  
Didymium (Solution) Wavelength accuracy UV/Vis/NIR X X  
Potassium Dichromate (Solution) Photometric accuracy UV (X) X X
Niacin (Solution) Photometric accuracy UV X X  
Toluene in Hexane Spectral Resolution UV X X  
Potassium Chloride (Solution) Stray light UV X X X
Sodium Iodide (Solution) Stray light UV X X X
Potassium Iodide (Solution) Stray light UV X X X
Sodium Nitrite (Solution) Stray light UV X X X
Acetone Stray light UV (X) X X

Ph. Eur. : European Pharmacopoeia
USP<857> : United States Pharmacopeia Chapter <857>
ASTM: American Society for Testing and Materials

Optical Reference Materials (Brochure & User Manual EN)



Hellma USA Inc.
120 Terminal Drive
11803 Plainview, NY
United States

Phone: +1 5169 3908 88


Disabled, please use email.