Apparatus is used for a limit test for arsenic, as described in European Pharmacopeia, 1997, page 51. Complete apparatus consists of 125 ml conical flask with a 24/40 NS joint, a capillary chimney with a pulled tip below and a 24/40 NS joint at bottom, #5 flat-ground joint at top with hooks for ³/₄" springs, and an adapter tube with #5 flat-ground joint with hooks. Fabricated from borosilicate glass.