Supply and Install of a Bio-Aerosol Counter/Sizer

Suppliers can find the complete tender document(s), at no cost, on: https://uwo.bonfirehub.ca.

Procuring Entity:
University of Western Ontario (Western)
Procurement Services
1151 Richmond Street
London, Ontario, Canada, N6A 3K7

Contact:
Scott Roth sroth6@uwo.ca         

Procurement Method:
Open tender whereby all interested Suppliers may submit a Proposal.

Description:
The RFP is an invitation to submit offers for the Supply and Install of a Bio-Aerosol Counter/Sizer.
The item being procured is an instrument to measure super micrometer particle size distributions of aerosols from 0.5 to 20 micrometers with high size resolution.  It must employ a Time-of-Flight measurement technique which permits the direct measurement of the aerodynamic diameter of fine, airborne particles in real time. This sizing technique shall account for particle shape. The study of particle shape known as morphology is critical to the research since some species of airborne particulates such as sea salt are not spherical. The particle size of such particles can only be detected by the measurement of the aerodynamic diameter which is calculated by the transport time.  Other instrumentation such as optical particle counters cannot make these measurements accurately.
The instrument must be unaffected by index of refraction or Mie scattering; the detection capability by other instruments such as optical particle sizers and counters cannot successfully meet this requirement.  The instrument should offer rapid measurement of particle number and size distribution with highest accuracy and 52 channels size resolution. In addition, the instrument should also be able to record the particle light-scattering intensity on a particle-by-particle case.  This second measurement must be kept separate and distinct from aerodynamic size.
The instrument software shall allow data to be displayed, analyzed, and played back without the need for external spreadsheet programs.  Three-dimensional plots of the size distributions over time that can be replayed are required.  The instrument must contain the laser & detector, power supply, pump, an LCD display, and all instrument controls in a single cabinet. The instrument must offer microprocessor-controlled internal pumps with temperature and barometric pressure correction.
Summary of key requirements:
1.Time - of - flight measurement – importance of capability to measure particles regardless of shape.
2. High resolution – 52 channel size resolution
3. Unaffected by refractive index or Mie scattering
4. Integrated dilution module to provide 20:1 or 100:1 dilution which the particle size distribution and concentration is automatically corrected for in the software.
Alternative Proposals
NOTE TO PROSPECTIVE PROPONENTS: IF PROPOSING AN EQUAL ITEM, PROPONENTS MUST INCLUDE ADEQUATE INFORMATION FOR EVALUATION WHETHER OR NOT THE ITEM MEETS THE STATED SPECIFICATIONS
Refer to the RFP document for further information.
Budget:
The estimated total pre-tax budget is CAD$120,000 plus HST.
Estimated Quantities:
Available within the tender document

Submission Details:
All tender submissions must be uploaded electronically at https://uwo.bonfirehub.ca

Submission Deadline:
August 11, 2026 at 12:00 PM ET

Public Opening:
Not Applicable

Conditions for Participation:
Available within the tender document(s)

Mandatory Submission Requirements:
 

1. Appendix B- Submission Form
2. Appendix C- Rate Bid Form
3. Appendix D- Reference Form
4. Appendix E- Deliverables and Technical Requirements Questionnaire
5. Appendix F- Western’s Commitment to Sustainability in Procurement and Supporting Documents
6. Appendix G- Proponents Checklist

Complete submission requirements are provided within the tender document(s).


Scored Submission Requirements:
 

1. Mandatory Requirements
2. Experience, Qualifications and References
3. Technical Requirements
4. Service and Support
5. Sustainability
6. Value- Added Ideas
7. Accessibility (AODA)
8. Pricing
9. In-kind

This procurement is covered by Chapter 5 of the Canadian Free Trade Agreement (CFTA).

Delivery Date:
2027

Duration of Agreement:
Upon receipt of equipment and satisfaction of obligations as set out in the Agreement.

Additional Options:
Available in the tender document(s)

Negotiation:
At the end of the evaluation process, Western may identify one or more Suppliers with whom it wishes to enter into negotiations, by written notification.  See tender document(s) for further detail.

Prequalification:
Not Applicable

Responses must be submitted in English.

Suppliers should note that information contained within this Tender Notice is subject to change.  Suppliers are encouraged to download the tender document(s) which contain the most current information.
 
If there is a conflict between the tender document(s) and this Tender Notice, the tender document(s) will take precedence.
 

Bidding and Documents are available on http://www.merx.com. Fees may apply; See https://www.merx.com/public/pricing for more information.