- NIST Traceable
- Permanently Sealed, Lifetime Warranty
- Recertifiable
- ISO 17025 certified
- ISO Guide 34 certified
- ISO 9001
- UKAS accrediated laboratory
Validate your instrument with
Starna UV/Vis Certified Reference Sets
Starna UV/Vis Certified Reference Sets
Use these reference sets to easily validate your spectrophotometers. Each set is supplied with a certificate of analysis and NIST Traceability from our ISO 17025 and UKAS accrediated reference laboratory.
| Photometric Accuracy | Potassium Dichromate | Absorbance scale in the UV |
|---|---|---|
| Nicotinic Acid | Absorbance scale in the Far UV | |
| Neutral Density Filters (visible) | Absorbance/Transmission in the visible | |
| Resolution/Bandwidth | Toluene in Hexane | Bandwidth in the UV |
| Benzene Vapor | Resolution in the UV | |
| Wavelength References | Holmium Perchlorate | Best for both UV and visible |
| Didymium Perchlorate | Best for high wavelength visible | |
| Rare Earth | Best for Far UV | |
| Samarium Perchlorate | Good for UV and resolution in UV | |
| Stray Light References | Many materials available | Six materials with different cutoffs |