AMENDMENT TO CLOSING TIME: Please disregard the Ariba Discovery posting response deadline closing time and CanadaBuys posting closing time. All required supporting documentation and bid submission must be submitted by August 16, 2023 at 14:00 EDT. All bids submitted after 14:00 EDT will result in the bid being declared non-responsive. Agriculture and Agri-Food Canada, Science and Technology Branch, Harrow Research and Development Center has a requirement for the supply and delivery of Reflectance and Transmittance Modules for an OL-750 Spectroradiometer from Optronics Laboratories. to expand the capabilities of the OL-750 Spectroradiometer, previously procured from Optronics Laboratories in a competitive process. These new capabilities include expanded range into the Far-Infrared (0.3-14.5um), diffuse reflectance, and normal transmittance measurements through specimen samples up to 2” x 2” in size.