Reflectance
Standards
Built for reflectance measurements
Wide-range detection from 250 to 2400 nm
Optical PTFE with > 98% reflectivity for diffuse reflectance
Fused silica for specular measurements;
Long-term stability
Relative reflectance measurements determine the proportional amount of reflected light from a sample against the amount of light that is reflected by the standard, which is assumed to have a reflectance of 100%. For diffuse reflectance measurements, Sarspec has a set of standards made of optical PTFE with reflectivity, from 250 to 2500 nm. These references are hydrophobic and chemically inert, therefore can be cleaned.
Furthermore, they also offer long-term stability, even when used in the UV range. For specular reflectance measurements, Sarspec has a fused silica substrate coated with Al-MgF2 for high specular reflectivity, from 250 to 2500nm.
About the
Reflectance Standards
Technical Information
| Wavelength Range | Standard Material |
|---|---|
| 250 - 2500 nm | Diffuse Standard: Optical PTFE Specular Standard: Fused Silica/AI-MgF2 |
| Support Material | Maximum Temperature |
|---|---|
| Black Anodized Aluminum | Diffuse Standard: 260ºC Specular Standard: 80ºC |
More information
Ordering Information ↓
| Part-Number | Description |
|---|---|
| DRSTD98 | Diffuse Reflectance Standard, Optical PTFE, 98% Reflectance |
| SRSTD | Specular Reflectance Standard |
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