Loren Data's SAM Daily™

FBO DAILY ISSUE OF SEPTEMBER 02, 2005 FBO #1376
SOLICITATION NOTICE

66 -- Dynamic Vapor Sorption Instrument

Notice Date

8/31/2005
 

Notice Type

Solicitation Notice
 

NAICS

334516 — Analytical Laboratory Instrument Manufacturing
 

Contracting Office

Department of Agriculture, Agricultural Research Service, Pacific West Area Office, 800 Buchanan Street, Albany, CA, 94710-1105
 

ZIP Code

94710-1105
 

Solicitation Number

Reference-Number-PFR-05
 

Response Due

9/9/2005
 

Archive Date

9/9/2005
 

Point of Contact

Clarice Dixson, Contract Specialist, Phone 510-559-6027, Fax 510-559-5638,
 

E-Mail Address

cdixson@pw.usda.gov
 

Description

The USDA, Agricultural Research Service in Albany, California has a requirement for a fully automated dynamic vapor sorption (DVS) system. This unit must quantify evaporation and re-condensation of water vapor as the governing heat and moisture transfer mechanism in porous samples. Critical parameter measurements to achieve objectives are: heats of sorption and desorption, the rate at which equilibrium is established, and the kinetics of water vapor transfer, internal moisture uptake, and internal evaporation. This DVS instrument must be capable of measuring the weight of samples and relative humidity of the surrounding closed environment simultaneously as well as the rate at which equilibrium is established. Must consist of a highly sensitive digital microbalance (1.5g capacity and 0.1 ug sensitivity) with symmetrically heated and buoyancy compensated gas flow configuration for both absolute and differential sample measurements, temperature range of 5 – 60 degrees C, advanced fully-automated humidity control system (0 –98% RH) with precision thermal conductivity mass flow controllers and dual-channel temperature/humidity sensors, and constant temperature research-grade enclosure. This relative humidity control range covers the sorption region of the samples being studied. Temperature accuracy must be +/- 1C and humidity accuracy +/- 1RH. Instrument measurements must provide more accurate readings than the classic method of using dessicators or water activity meters. Also, the measurements of the rate at which equilibrium is being established must provide significant insight into the energy necessary for evaporation, energy released upon partial condensation, and vapor pressure within the sample at a non-equilibrium state. Live data export for data plotting and analysis, and real-time display of experiment progress. Contact Clarice Dixson at 510-559-6027 / 510-559-5638 FAX or e-mail cdixson@pw.usda.gov NOTE: THIS NOTICE WAS NOT POSTED TO WWW.FEDBIZOPPS.GOV ON THE DATE INDICATED IN THE NOTICE ITSELF (31-AUG-2005); HOWEVER, IT DID APPEAR IN THE FEDBIZOPPS FTP FEED ON THIS DATE. PLEASE CONTACT fbo.support@gsa.gov REGARDING THIS ISSUE.
 

Web Link

Link to FedBizOpps document.
(http://www.eps.gov/spg/USDA/ARS/PWAO/Reference-Number-PFR-05/listing.html)
 

Place of Performance

Address: USDA, Agricultural Research Service Western Regional Research Center 800 Buchanan Street Albany, California

Zip Code: 94710

Country: USA
 

Record

SN00884416-F 20050902/050831213437 (fbodaily.com)
 

Source

FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)

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