• Holmium Glass - UV and Visible Wavelength  (94.53125%)

    Holmium Glass - UV and Visible Wavelength

  • Holmium Glass - UV and Visible Wavelength  (100%)

    Holmium Glass - UV and Visible Wavelength

  • Holmium Glass - UV and Visible Wavelength
  • Holmium Glass - UV and Visible Wavelength
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Holmium Glass - UV and Visible Wavelength



The holmium glass filter is suitable for use as a wavelength reference material in the UV and visible regions of the spectrum (240 nm – 640 nm). Unlike the liquid cell, however, It is not adopted  by all the Pharmacopoeias for wavelength qualification.
It is accepted by the following bodies:

United States Pharmacopoeia 
American Society for Testing and Materials 
Therapeutic Goods Administration (Australia) 
British Pharmacopoeia

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The spectrum shows 11 characteristic and well-defined peaks covering the wavelength range from 240 nm to 640 nm.

Holmium-glass

Approximate peak wavelength values (in nm) are: 
242, 279, 288, 334,  361, 419, 446, 454, 460, 537, 638

 

A Certificate of Calibration and Traceability and full instructions for use are provided with each Reference Material. Starna Scientific is accredited to both ISO Guide 34 (4001) as a Reference Material producer, and ISO 17025 (0659) as a Calibration Laboratory for optical reference measurements. Starna offers a Lifetime Guarantee on all its Reference Materials.

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