SOLICITATION NOTICE
66 -- THERMOPHORETIC PARTICLE SAMPLER AND PAS ARRAYS WITH PRE-NUMBERED SEM STUBS
- Notice Date
- 4/9/2015
- Notice Type
- Presolicitation
- NAICS
- 334516
— Analytical Laboratory Instrument Manufacturing
- Contracting Office
- NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135
- ZIP Code
- 44135
- Solicitation Number
- NNC15VE30PQ
- Response Due
- 4/15/2015
- Archive Date
- 4/9/2016
- Point of Contact
- Jeremiah F O'Callahan, Contract Specialist, Phone 216-433-5632, Fax 216-433-8560, Email Jeremiah.f.OCallahan@nasa.gov - Ernest C. Mensurati, Contracting Officer, Phone 216-433-2727, Fax 216-433-8560, Email Ernest.C.Mensurati@nasa.gov
- E-Mail Address
-
Jeremiah F O'Callahan
(Jeremiah.f.OCallahan@nasa.gov)
- Small Business Set-Aside
- Total Small Business
- Description
- NASA/GRC has a requirement for: a thermophoretic particle aerosol sampler (TPS) and passive aerosol samplers (PAS) Arrays with pre-numbered SEM Stubs The thermophoretic particle aerosol sampler must meet the following requirements: Collection of particles must be directly on a microscopy substrate, such as a TEM grid Particles must be collected using a gentle deposition mechanism, the thermophoretic force (electrostatic deposition is much more harsh) TEM grid must be held in place magnetically in order to facilitate gentle removal TEM grids must be protected by a cartridge cover before & after sampling, and must be easy to load/reload in the sampler Device weight must be less than 350 grams Battery life must be close to 8 hours Battery charging operation must not exceed 4 hours Small volumetric flow rate is required for long-duration sampling (5 ml/min) The aerosol sampler must be programmable to run for a set sampling duration, up to 8 hours The aerosol sampler must have active cooling for any Peltier devices incorporated in the design The passive aerosol sampler must meet the following requirements: Five passive samplers must be mounted and numbered in an array for staggered sampling operations Particles must be collected on the sampler by inertial deposition and diffusion The particles must be collected on a microscopy substrate, such as a SEM stub A mesh cover must protect the collection substrate from larger debris The sampler must be able to collect particles up to about 200 micrometers in diameter NASA/GRC intends to purchase the items from RJ Lee Group. Sole-source justification for purchasing RJ Lee Group TPS-100: The TPS-100, from RJ Lee Group, is the only thermophoretic sampler that is commercially available. Another compact and portable sampler exists on the market but it is NOT a thermophoretic sampler. This other sampler uses electrostatic deposition rather than thermophoretic deposition of particles. The electrostatic force is much harsher than thermophoresis, and it also requires the charging of the particles prior to collection. The high voltage electric field in the electrostatic deposition device can cause electromagnetic interference (EMI) issues which is not acceptable in our intended sampling environment. Furthermore, charging efficiency of particles may not be 100%, and therefore not all the particles may be captured. Another risk is that particle charging is somewhat material dependent. Therefore the electrostatic deposition device is not a suitable device for our sampling purposes. Sole-source justification for purchasing RJ Lee Group PAS arrays: The Passive Aerosol Samplers we are procuring were developed at the University of North Carolina (UNC) and therefore are known in the aerosol literature as UNC-PAS. They are fabricated to order by RJ Lee Group. These samplers will be custom-made into 5-piece arrays for our specific sampling needs. Other devices called passive samplers are for collecting gaseous samples, but the PAS described in the specifications is specifically for collecting aerosol particles. The Government intends to acquire a commercial item using FAR Part 12. Oral communications are not acceptable in response to this notice. NASA Clause 1852.215-84, Ombudsman, is applicable. The Center Ombudsman for this acquisition can be found at http://prod.nais.nasa.gov/pub/p ub_library/Omb.html.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/NASA/GRC/OPDC20220/NNC15VE30PQ/listing.html)
- Record
- SN03694924-W 20150411/150409235159-efba215b284418db5c2a244d33a2a967 (fbodaily.com)
- Source
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