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In accordance with regulations

MaterialTestRangePh. Eur.DABUSP 857ASTM
Glass filter:
Didymium glassWavelength accuracyUV/Visx
Didymium glassPhotometric accuracyUV
Neutral density glassPhotometric accuracyVisxx

Liquid filter:
Didymium (Solution)Wavelength accuracyUV/Visx
Holmium-Didymium (Solution)Wavelength accuracyUV/Vis
Rare Earth (Solution)Wavelength accuracyUV
Potassium dichromate (Solution)Photometric accuracyUV/Visxxxx
Niacin (Solution)Photometric accuracyUV
Toluene in hexane (Solution)ResolutionUVxxx
Potassium chloride (Solution)Stray lightUVxxxx
Sodium iodide or potassium iodide (Solution)Stray lightUVxx
Sodium nitrite (Solution)Stray lightUVxx
AcetoneStray lightUVxx

Ph. Eur. : Pharmacopoeia Europaea
DAB : German Pharmacopoeia
USP 857 : United States Pharmacopoeia Chapter <857>
ASTM : American Society for Testing and Materials