Reflectance
Standards

Ideal for reflectance measurements

Wide-range detection from 250 to 2400 nm

Different reflectivities for diffuse measurements

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 98, 50, and 10% of 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
DRSTD50 Diffuse Reflectance Standard, Optical PTFE, 50% Reflectance
DRSTD10 Diffuse Reflectance Standard, Optical PTFE, 10% Reflectance
SRSTD Specular Reflectance Standard

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