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Available in fine (4-5.5 microns), medium (10-15 microns), or coarse (40-60 microns) porosities
Fritted disc is sealed into the crucible
crucible suitable for precipitates to be dried to a constant weight at 110 degrees C
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements Technical Tip : At higher temperatures, heating in an electric furnace is advised, and exposure to sudden temperature changes should be avoided. For safe handling, crucibles should not be removed until the temperature has been reduced to below 250 degrees C.