Alundum Extraction Thimbles

Photo of Alundum Extraction Thimbles

Alundum extraction thimbles are for all kinds of extractions, except strong alkalis. They remain constant in weight. Extracted residue can be removed by ignition. Alundum material will withstand temperatures up to 1450° C. The 70 x 25mm thimble (E1600-4) is used in ASTM D473 test for fuel oil sediment by extraction.