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Pipettes with capacity graduation are used to dispense liquids. They are calibrated ”Ex” (to deliver): the imprinted volume refers to the delivered amount of liquid. Graduated pipettes for complete delivery are called serological pipettes.
Classification:
- Class AS
”A” stands for highest accuracy, ”S” for fast delivery (waiting time reduced to 5 seconds). The tolerances of class AS are half of the tolerances of class B according to DIN ISO standards. - Class AS conformity certified
Conformity means compliance with the German Calibration Regulations and the relevant standards.
By imprinting the conformity symbol "DE-M" along with the year we confirm that the measuring device complies with these conditions. A batch certificate of conformity is supplied in every packing unit. On request, individual certificates of conformity are available.
Amber graduation: the amber stain graduation penetrates into the glass surface and is, therefore, more resistant than a blue, fused-on enamel graduation.
- made of soda lime glass
- acc. to DIN EN ISO 835 except capacity 0.1 ml
- low risk of breakage
- especially formed tips and ends, bevelled and fire-polished
- calibrated tips provide short and practice-oriented waiting time
- with colour coding for easy identification
- with indication of tolerance
- as from 5 ml capacity with constricted upper end to retain cotton plug. A cotton plug prevents an overflow of the pipette. But it can also extend the waiting time and thereby influence the accuracy of the measuring.
- circular graduation at main points, well legible numbers and graduations
- for complete delivery, zero at top
Do not mouth pipette! For recommended pipetting aids please see "Pipetting aids and accessories".
Class AS:
Cat. No. | Capacity | Tolerance | Multipack | Unit |
---|---|---|---|---|
1902000 | 0,1 : 0,001 ml | ± 0,006 ml | 39 x 24 | 24 |
1902010 | 0,2 : 0,001 ml | ± 0,006 ml | 39 x 24 | 24 |
1902030 | 0,5 : 0,01 ml | ± 0,006 ml | 39 x 24 | 24 |
1902040 | 1 : 0,01 ml | ± 0,007ml | 39 x 24 | 24 |
1902070 | 2 : 0,02 ml | ± 0,010 ml | 39 x 24 | 24 |
1902080 | 2 : 0,1 ml | ± 0,010 ml | 39 x 24 | 24 |
1902100 | 5 : 0,1 ml | ± 0,030 ml | 55 x 12 | 12 |
1902110 | 10 : 0,1 ml | ± 0,050 ml | 55 x 12 | 12 |
1902120 | 20 : 0,1 ml | ± 0,10 ml | 10 x 12 | 12 |
1902130 | 25 : 0,1 ml | ± 0,10 ml | 10 x 10 | 10 |
1902140 | 50 : 0,2 ml | ± 0,20 ml | 10 x 5 | 5 |
Class AS, conformity certified, with batch certificate:
Cat. No. | Capacity | Tolerance | Multipack | Unit |
---|---|---|---|---|
1903040 | 1 : 0,01 ml | ± 0,007 ml | 39 x 24 | 24 |
1903070 | 2 : 0,02 ml | ± 0,010 ml | 39 x 24 | 24 |
1903100 | 5 : 0,1 ml | ± 0,030 ml | 55 x 12 | 12 |
1903110 | 10 : 0,1 ml | ± 0,050 ml | 55 x 12 | 12 |
1903120 | 20 : 0,1 ml | ± 0,10 ml | 10 x 12 | 12 |
1903130 | 25 : 0,1 ml | ± 0,10 ml | 10 x 10 | 10 |
Colour coding for pipettes acc. to ISO recommendations
Capacity | Colour | Number stripes |
---|---|---|
0.1:0.001 ml | green | 2 |
0.2:0.001 ml | blue | 2 |
0.5:0.01 ml | yellow | 2 |
1:0.01 ml | yellow | 1 |
1:0.1 ml | red | 1 |
2:0.01 ml | white | 2 |
2:0.1 ml | green | 1 |
5:0.05 ml | red | 1 |
5:0.1 ml | blue | 1 |
10:0.1 ml | orange | 1 |
20:0.1 ml | yellow | 2 |
25:0.1 ml | white | 1 |
50:0.2 ml | black | 1 |