MBL® class AS one-mark (bulb) pipettes from Scilabware are manufactured in soda-lime glass to ISO648 and DIN12690 standards and calibrated for delivery, with amber stain graduations and inscriptions. Each pipette is coded with an individual serial number and supplied with calibration certificate which allows traceability to National Standards. The 1 and 2ml sizes are straight pattern without bulb and the 15ml size is supplementary to the ISO and DIN ranges. Class AS pipettes only require a 5 second waiting time.
Tolerances and colour code:| Capacity, ml | Code | Class AS |
| ±ml | ||
| 1 | Blue | 0.008 |
| 2 | Orange | 0.010 |
| 5 | White | 0.015 |
| 10 | Red | 0.020 |
| 15 | Green | 0.025 |
| 20 | Yellow | 0.030 |
| 25 | Blue | 0.030 |
| 50 | Red | 0.050 |
| 100 | Yellow | 0.080 |