General Catalogue Chemistry - BECO Internacional LTDA.

glass, plastic and porcelain ware
Rubber stoppers
Cat. No. Dia. bottom Dia. top Height Hole Suitable for
[mm] [mm] [mm] 7 mm
667 251
667 252
667 253
667 254
667 255
667 256
667 257
667 258
667 260
667 261
667 262
667 263
667 264
667 265
667 266
667 267
667 268
667 269
* 4 mm dia
9 13 20 – test tubes 100 x 12 mm
9 13 20 1* test tubes 100 x 12 mm
14 18 20 – test tubes 160 x 16 mm
14 18 20 1 test tubes 160 x 16 mm
16 21 25 – SB 19 vessels
16 21 25 1 SB 19 vessels
19 24 25 – test tubes 180 x 20 mm,
Erlenmeyer flasks,
narrow-neck 50 ml and 100 ml,
19 24 25 1 test tubes, 180 x 20 mm,
Erlenmeyer flasks,
narrow-neck 50 ml and 100 ml
25 31 30 – SB 29 vessels
25 31 30 1 SB 29 vessels
25 31 30 2 SB 29 vessels
25 31 30 1* SB 29 vessels
28 34 30 – for test tubes, 200 x 30 mm,
Erlenmeyer flasks,
narrow-neck 250 ml and 500 ml
28 34 30 1 for test tubes, 200 x 30 mm,
Erlenmeyer flasks,
narrow-neck 250 ml and 500 ml
28 34 30 2 test tubes, 200 x 30 mm,
Erlenmeyer flasks,
narrow-neck 250 ml and 500 ml
42 49 35 – SB 45 vessels
42 49 35 1 SB 45 vessels
42 49 35 2 SB 45 vessels
262 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
664 812
Bubble counter
For monitoring the flow rates of gases.
667 196
Flow monitor “Aquamobile”
Made of heat-resistant, transparent plastic.
For monitoring cooling water flows,
e.g. during distillation or reactions under reflux.
Dimensions 50 x 50 x 15 mm.
667 273
Rubber stoppers
Set of 13, assorted, diameter 14 - 25 mm.
667 280
Rubber stoppers
Set of 60, assorted, diameter 9 - 45 mm.
667 281
Cork stoppers
Set of 100, assorted, diameter 9 - 30 mm.