Didymium Glass Filter 666-F7 (Hellma Analytics)
Product Code: HELL666F7-323
Didymium glass filter for testing wavelength accuracy and photometric accuracy
Absorbance: 270, 280, 297, 320, 340 nm
Wavelengths: 329, 472, 512, 681, 875 nm
Certified reference material to DIN EN ISO 17025
Other links