To see other variants and accessories, please enter the webcode on our website. webcode 985 2 2Liquid filters sets for inspection of the spectrophotometers in respect of stray light behavior, resolution power, photometrical accuracy and wavelength accuracy pursuant to the European Pharmacopoeia EP 10 Calibration Standards Type Use Contents Wavelength nm Order No. 667S501 Checking photometric accuracy in the UV range Filter set contains 4 various niacin filters 213, 261 10 55 17501 667400 Checking the wavelength accuracy Filter set UV5 holmium in perchloric acid and UV14 perchloric acid 241, 287, 361, 451, 485, 536, 640 10 55 17400 667107 Checking for stray light Filter set UV 23 potassium iodide in pure water with UV12 reference filter 259 Cut-off 10 55 17107 667200 Checking the photometric accuracy Filter set UV6 toluene in hexane with UV9 reference filter Scan from 265– 270 10 55 16672 667EP1002 Checking the spectrophotometer in the UV/Vis range acc. to Ph. Eur. EP 10 Containing the sets: 667S501, 667400, 667107, 667200 10 55 11002 webcode WWPEV015 Calibration Standard for Microplate Readers, Hellma® With calibration standards from Hellma Analytics, the photometric and wavelength accuracy of microplate readers can be checked. They have the same dimensions as a microplate with 96 wells and a diameter of 6.6 mm per window (height 14.5 x width 125 x length 85.5 mm). Type Use Material Wavelength nm Order No. 666R013 Testing the photometric accuracy Neutral density glass filter NG11/NG5/NG4 (absorbtion 0.25/0.5/1.0) 405, 450, 490, 650 10 55 16013 666R113 Testing the photometric and the wavelength accuracy Neutral density glass filter NG5/NG4/NG3 (absorbtion 0.5/1.0/1.5) Holmium oxide glass filter 405, 450, 490, 650 279, 361, 453, 536, 638 10 55 16113 Optical Investigations Spectroscopy Use the webcode on our website to see a larger selection of products from a specific manufacturer. webcode
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