Quartz glass tubes	Crucibles
Petri-, Evaporatingdishes, Watchglasses	Volumetric Flask, One-mark- and graduared pipettes
Ball and socket Joints, Std. Ground Joints-Cones, -Sockets	Threaded Tubes, Plane cut flange, Short stem funnels
Glass Beakers	Round bottom flasks
Erlenmeyer-Flasks, Kjeldahl-Flasks	Bottles reagent, wide neck, narrow neck
Liebig condenser, Dimroth condenser, Allihn condenser	Silicia wool, Filter
Quartz glass optical	Rod-type heater, Spiral immersion heater
Quartz for semiconductors	Special designs
Please choose the category you want further information !

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Round bottom flask

Round bottom flask
DIN 12347 DIN 12348 DIN 12347 DIN 12348	Capacity ca. ml	Flask-ø o.d. ca. mm	Total Height ca. mm	Neck-ø a.d. ca. mm	Socket	DIN 12347 Order-No. with rim	DIN 12348 Order-No. with socket
	short narrow neck, with rim, or socket
	25	41	67	18	14,5	20015	22015
	50	51	105	22	19	20017	22017
	100	64	115	22	19	20024	22024
	250	85	145	34	29	20036	22063
	500	105	175	34	29	20044	22044
	1000	131	210	47	29	20054	22054
	2000	165	260	42	29	20063	322063
	short wide neck, with rim or socket
	50	51	105	34	29	21017	23017
	100	64	115	34	29	21024	23024
	250	85	145	50	45	21036	23036
	500	105	175	50	45	21044	23044
	1000	131	210	50	45	21054	23054
	2000	165	260	50	45	21063	23063
	Other sizes on request