NUS Custom Biological Safety Cabinet

May 23, 2017

Automated Pipetting System

“Pipetting" is commonly used in molecular biology, analytical chemistry, and medical tests, to  transport a measured volume of liquid. Moreover, its performances are regulated by the International Standard ISO8655-1:2002.

In principle, automated pipetting system is a device that is programmed to do transfers of liquid to preselected groups of vessels. These critical labor saving devices provides precise sample preparation for high output sequencing or screening (HTC), preparation of sample, liquid/powder weighing, and also bio-assays of many kinds. One advantageous feature of automated pipetting is the ability to enhance the reproducibility and the throughput of laboratory experiments.

Esco Custom Airstream® G Series

Esco has installed a customized Airstream® G-Series biological safety cabinet to house an Agilent Bravo Automated Liquid Handling Platform last February 2017 at the Center of Life Sciences, SLING Program, National University of Singapore. Established by Dr. Markus Wenk, SLING, the Singapore lipidomics incubator, an interdisciplinary program dedicated to innovation, education and partnership in lipidomics research at the National University of Singapore. SLING is a major global magnet for collaborating parties in lipidomics—from academia and industry—delivering new technologies and intellectual capital.


Figure 1. AC2-4S8-G3 with Agilent Bravo Automated Liquid Handling Platform

To accommodate the automated liquid handling platform, AC2-4S8-G3 (Figure 1) was configured with 908 mm inner height, work tray with 600 mm inner depth and reinforced to hold 80 Kg Load. The 28” fixed stand with levelling feet was constructed with a customized depth of 822 mm. The unit as well comes with custom-made side walls with 39.2 mm holes on the left wall (at 300 mm from back), 39.2 mm holes on the left wall (at 380 mm from back), 39.2 mm holes on the right wall (at 300 mm from back), and Zero Volt Relay Contact. 

Representing innovation and forward-thinking designs, coupled with the highest standard quality, Esco takes the opportunity to deliver trusted laboratory solutions worldwide.

Esco Product Information:

ITEM CODE: 2010771

General Specifications, Airstream Class II, Biological Safety Cabinets (S-Series) Generation 3
Model Name AC2-4S8-G3
External Dimensions (WxDxH) 1340x964x1657 mm (52.7"x38"x65.2")
Internal/Work Area Dimensions (WxDxH) 1220x734x908 (48"x28.9"x35.7")
Usable Work Area 0.56 m (6.03 sq.ft )
Tested Opening 175 mm (6.89")
Average Airflow Velocity Inflow 0.45 m/s (88.6 fpm)
Downflow 0.30 m/s (60 fpm)
ULPA Filter Typical
Exhaust >99.999% for particle size between 0.1 to 0.3
microns, per IEST-RP-CC001.3
Downflow >99.999% MPPS as per EN 1822 (H-14) EU
Fluorescent Lamp >1220 Lux (>113 foot-candles)
Cabinet Construction Main Body 1.2 mm (0.05")/18 gauge EG Steel With Isocide Oven-
Baked Epoxy-Polyster Powder Coating
Work Zone Single Piece Tray: 1.5mm (0.06")/16 gauge, SS 304, 4B Finish
Electrical Rating Power rating: 1 220-240 VAC, 50 Hz, 1 ø
Power rating: 2 110-130 VAC, 60 Hz, 1 ø
Power rating: 3 220-240 VAC, 60 Hz, 1 ø


  1. ISO 8655-1:2002, Piston-operated volumetric apparatus. Cited: 17 March 2017. Available from:
  2. Agilent. Agilent Bravo Automated Liquid Handling Platform. Cited 17 March 2017. Available from:
  3. National University of Singapore. Life Sciences Institue. SLING Programme Leader. Markus R Wenk. Cited: 16 March 2017. Available from: