White standard made of optical PTFE for (almost) perfect diffuse reflection.
- Reflection > 98 % @ 400 nm to 800 nm
- Reflection > 93 % @ 250 nm to 2,500 nm
- Effective area: Square 100 mm x 100 mm x 2 mm
- One side usable
- Very easy to use
- Flat design for easy measurement of thin and transparent material
- Hinged lid with magnetic closure for safe storage