¡EClass AS ¡E¨Ï¥Î¼w°ê³Ì°ªµ¥ªºDuran¸Nª¿»Ä¬Á¼þ ¡E¶Â¦â¨è¹º¡A²M·¡©öŪ ¡E²Å¦XDIN 12 700 T5 ¡Dªþ2L²Ó¤f²~¤Î°e·²y ¡D¹Ï¤ù¬°·L½Õ«¬IÂŽu¡A¹êª«¬°¥þ³z©úµLIÂŽuTF®ê Automatic burettes acc. to Pellet, DURAN, class AS,black graduation, intermediate stopcock with PTFE key, lateral stopcock with PTFE key, EX (TD) calibrated, acc. to DIN 12 700 T5, with 2 liter clear glass reservoir bottle.