Features
Split double monochromator configuration
Monochromatic sample illumination (290-400nm)
Integrating sphere collection of transmitted light
Monochromator detection (290-400nm)
Fully automated and reporting of results
Applications
ISO 24443:2012 - Determination of sunscreen UVA photoprotection in vitro
EN ISO 24443:2012 - Determination of sunscreen UVA photoprotection in vitro
AS/NZS 2604:2012 - Sunscreen products - Evaluation and classification
FDA, Final Rule 2011 - Rulemaking History for OTC Sunscreen Drug Products
Measurement
| Spectral range of operation |
290-400nm |
| Bandwidth |
1nm |
| Wavelength accuracy |
± 0.1nm (2400g/mm) |
| Beam diameter at sample plane |
4mm diameter |
| Measured absorbance range |
0-6 OD |
| PMMA plate dimensions |
5x5cm |
| Bench space required |
1m deep x 2.5m wide |
| Services requirements |
5 x main sockets 1200W power consumption |
Monochromatic Probe Source
| UV source |
150W short-arc xenon lamp |
| Monochromator configuration |
Symmetric, single Czerny-Turner |
| Monochromator focal length |
300mm |
| Diffraction gratings |
2400 g/mm |
| Dispersion |
5.4nm/mm (2400g/mm) |
| Wavelength accuracy |
± 0.1nm (2400g/mm) |
| Beam diameter at sample plan |
4mm diameter |
Computer Requirements
| OS |
Windows 7, Windows 8 (32-/64-bit) operating systems (or newer) |
| Software control |
BenWin+ Spectral acquisition software |
| Minimum hard disk space |
Approx. 100MB |
| Minimum RAM |
2 GB |
| Interface |
4 x USB 2.0 ports |