Question and Answer Page.pdf
PDF 128 KB Posted
- Attached to
- Fractionating Aspirator Lab Tester Federal contract opportunity
- Solicitation number
- 12505B24Q0012
About this file
This document includes a sources sought notice and specification for a fractionating aspirator lab tester. The United States Department of Agriculture Agricultural Research Service Midwest Area is seeking capability statements from small businesses, including SBA-certified HUBZone, 8(a), service-disabled veteran-owned, and women-owned small businesses to determine availability for a potential procurement. The aspirator must separate samples by size and density, test seeds and grains from 0.5 to 2 liters in batch sizes. It must be portable and have a feed hopper larger than 2 liters. Responses are due by December 27, 2023 and will be used to determine competition type and scope. Eligible vendors must have active SAM registration including a UEI number under NAICS code 334516 and be NDAA 889 certified.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Specification Document.pdf | ||
| NDAA 889 Certification.pdf | ||
| Sources Sought Response Form.pdf |
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
What are the desired air velocity ranges for separa�on? This is what we will determine when frac�ona�ng samples. Most likely this will be reported as fan rpm, which can be varied using the VFD.
What is the target capacity for the feed hopper and feed rate range? The size of the feed hopper depends on the volume of receiving pans. If the receiving pan volume is 2 L, then the feed hopper is > 2 L.
What level of accuracy is required for the VFD controls (e.g., +/- 1%, +/- 5%)? Motor runs at 60 HZ. The rpm can be varied by using a VFD which is adjustable from 10 to 90 HZ.
What is the expected separa�on efficiency for different par�cle size and weight combina�ons? This cannot be specified. An aspirator actually separates based on terminal velocity which is affected by size, density and coefficient of drag (shape).
Are there any specific material requirements for the equipment or components (e.g., stainless steel, food grade)? Painted carbon steel body; transparent front cover plate. Food grade not required.
Are there any size or weight limita�ons for the unit? Benchtop model (USDA will provide cart with wheels).
Should the equipment be portable or sta�onary? Mobile.
Are there any data logging or recording capabilities required for the VFD settings? None.
Are there any specific safety features or certifications needed for the equipment? VFDs installed have UL cer�fica�on but the aspirator doesn’t have UL or equivalent itself.
What types of materials will be primarily tested with the aspirator (e.g., seeds, grains, minerals)?
Whole or milled seeds and grains.
Are there any specific par�cle size ranges or densi�es to be considered? We run all kinds of samples for tests, from whole seeds to milled seeds, different densities, and wide range of particle sizes. Ex. Seeds:
Soybeans =1.2 g/cc, camelina=1.1 g/cc, sorghum=1.3-1.4 g/cc; finely milled seeds=1.4-1.6 g/cc;
Seed/Particle size: Soybean=5.6-7.9 mm, camelina= 1 x 2 mm; sorghum=4-6mm, milled seeds and grains=0.2-1.0 mm.
What are the typical batch sizes for testing? 0.5 to 2 liters.
File details come from the government source that posted it. Updated .