The highly regulated enviroment in which many laboratories now work demands that analytical measurements are made in a strictly controlled enviroment.
Starna Certified Reference Materials are the most conveniant tools for validating spectrophotometric measurements in the ultra violet and visible regions and satisfy the most stringent requirements of all international control bodies.
Starna CRM's are fully traceable to NIST primary standards and are manufactured under ISO Guide 34 conditions,accepted world wide as the highest standard Commercially available.
The certification process satisfies ISO 17025
Starna Scientific is the only supplier of UV/Visible CRM's to be approved as a reference material Supplier by UKAS, the United Kingdom Accreditation Service, (Ref. 4001) and to hold both ISO 17025 and guide 34 Accreditations.
All Starna CRM's carry a lifetime guarantee, provided they are used and stored correctly and recalibrated at intervals of not more than 2 years

Starna Scientific's reference Materials are under constant development, in this rapidly evolving and highly regulated environent.
Starna is constantly improving on and introducing new and inovative products.

CRM qualifies photometric linearity in HPLC diode array systems more safely An easy to handle non-consumable photometric linearity Certified Reference Material (CRM) set has been introduced by Starna Scientific which uses propyl parabenz in methanol to qualify photometric linearity in UV diode array based HPLC systems.e