Automatic zero burettes acc. to Pellet

Marienfeld volumetric measuring instruments are manufactured with utmost care in a production which is certified according to DIN EN ISO 9001.
Burettes are calibrated "EX" (to deliver). The imprinted volume corresponds to the delivered quantity of liquid

They are available in class B (short-line graduated), class AS (fast delivery, circular graduation at main points) and class AS conformity certified (on request). Conformity (acc. to DIN 12 600) means compliance with the German Calibration Regulations and the relevant standards. By imprinting the mark of conformity "H" we certify that a measuring device complies with these conditions. On request, conformity-certified instruments are available with individual certificate at extra charge. A batch certificate is included in each packing unit.

Marienfeld burettes are also available with Schellbach stripe. This stripe at the back of the instrument facilitates reading precisely the meniscus of a liquid.

Automatic zero burettes acc. to Pellet, DIN 12 700, without intermediate stopcock, borosilicate glass 3.3, blue graduated, without reservoir bottle, without rubber bellow, in cartons of 2 pieces
class B, clear glass
glass plug
Cat. No.	capacity	tolerance
25 020 01	10:0.02 ml	+ 0.05 ml
25 020 11	25:0.05 ml	+ 0.05 ml
25 020 21	25:0.1 ml	+ 0.05 ml
25 020 31	50:0.1 ml	+ 0.10 ml
class B, with Schellbach stripe
glass plug
Cat. No.	capacity	tolerance
25 030 01	10:0.02 ml	+ 0.05 ml
25 030 11	25:0.05 ml	+ 0.05 ml
25 030 21	25:0.1 ml	+ 0.05 ml
25 030 31	50:0.1 ml	+ 0.10 ml
class AS, clear glass
glass plug	PTFE plug
Cat. No.	Cat. No.	capacity	tolerance
25 220 01	25 221 01	10:0.02 ml	+ 0.02 ml
25 220 11	25 221 11	25:0.05 ml	+ 0.03 ml
25 220 21	25 221 21	25:0.1 ml	+ 0.05 ml
25 220 31	25 221 31	50:0.1 ml	+ 0.05 ml
class AS, with Schellbach stripe
glass plug	PTFE plug
Cat. No.	Cat. No.	capacity	tolerance
25 230 01	25 231 01	10:0.02 ml	+ 0.02 ml
25 230 11	25 231 11	25:0.05 ml	+ 0.03 ml
25 230 21	25 231 21	25:0.1 ml	+ 0.05 ml
25 230 31	25 231 31	50:0.1 ml	+ 0.05 ml

Automatic zero burettes class AS conformity certified and automatic zero burettes with intermediate stopcock and made of amber glass are available upon request.

Reservoir bottles for above burettes, capacity 2000 ml, with ground joint NS 29/32, without stopper, in cartons of 6 pcs.
Cat. No.
36 190 09	clear glass
36 191 09	amber glass

Rubber bellows for above burettes, PVC sorrel, single, capacity approx. 65 ml
Cat. No.
59 010 00	with valve and tubing