http://www.physics.uc.edu/~johnson/Boone/oil_page/RFP.html
mirror: http://portia.fnal.gov/~randy/RFP.html
MiniBooNE Mineral Oil
Request for Proprosal Information Outline
VERSION 2e - 7/17/01
Oil Specifications
- Type: Light Mineral Oil (Industrial NF grade).
- Quantity: 959900 liters (253600 gal.)[1 liter = .26417762 gallons] when measured
at 55o F.
For detailed volume calculation, see table.
- Density: Specific gravity between .76 and .87 - measured via
ASTM D 4052
or ASTM D 1298 .
- Viscosity: < 34.5 cSt at 40o C (< 172 SUS at 100o F) - measured via ASTM D 445.
- Color: >+30 Saybolt units - measured via ASTM D 156.
- Atttenuation of light at 420 nm - The oil must be water clear.
In particular, it must have an attenuation length of
greater than 20 m for 420 nm (blue) light. That means that the amount of
420 nm light transmitted
through a 1.8 m (6 ft) sample must be no less than 92% of that
transmitted through
an .2 m (8 in) sample.
Qualification Sample
Vendors must submit 10 gallons of their oil(s) with their proposal.
The laboratory will verify that the oil does meet the above
specifications. In the case that multiple oils meet the above specifications,
the laboratory will use these samples to determine which proposal will be
accepted according to the criteria listed below.
Delivery
The oil should be delivered to the Fermilab railhead comencing approximately
between October 15 and November 15,
2001 in stainless steel food-grade tank cars that were cleaned and dried
before filling.
Vendors are requested to supply various delivery options and the costs
associated with these options.
The laboratory will be able to offload approximately 50000 gallons/week.
The vendor's schedule should be consistent with this schedule.
The
vendor is responsible for removing the empty cars from the Fermilab site.
Modifications to this delivery schedule and/or procedures will be considered
if submitted in writing with the proposal -- particularly if they result
in significant cost savings.
Proposed delivery schedule should be considered an outline. A detailed
schedule will be worked out between the laboratory and the vendor at the
time of the award of the contract.
Proposal Acceptance Criteria
If multiple proposals are received that meet the preceeding specifications,
the following criteria will be used to rank and select the oil:
- Low Cost.
- Long attenuation length over the wavelength range of 320 - 600 nm.
- Small amount of scintillation light (isotropic light emitted
when a charged particle passes through the material -- in mineral oil
low scintillation light corresponds to a low level of aromatic or unsaturated
impurities).
- High index of refraction.
- Low reactivity with materials in our detector (see note 1).
- Small dispersion over the wavelength range of 320-600 nm.
- Proposed delivery plan.
Final Acceptance Criteria
Once at Fermilab, the oil in each tanker car will be tested again to make sure
that the oil delivered is similar to that submitted with the proposal.
Should any car's oil significantly deviate from the proposal sample's
properties, that car will be rejected. It will be the vendor's
responsibility to pick up the rejected tanker car and oil and replace it.
Should the vendor request it, the lab is willing to discuss testing the oil
at the vendor's site prior to filling into the tanker cars.
Notes:
- Note 1 - Reactivity of mineral oil: The mineral oil selected
should not react with or dissolve any of the following materials:
- Cold rolled steel
- 6061 aluminium
- 5052 aluminium
- Plasite 9060 coating
- Stainless steel
- Sherwin Williams Paints
- Hydralon P waterbased epoxy primer E72AC500/V66VC503
- Jet Glo High Gloss Polyurethane white F91W26/V93V28/V93V2
- Flat black Moisture Cure Polyurethane F93B102
- Teflon
- PVC
- Viton
- Pyrex
- Black Masterbond coating (EP21LV)
These materials have been selected to be non-reactive with
mineral oil. To test reactivity,
samples of the above materials will be soaked in the proposed oil at
an elevated temperature (140o F) for a period of 8 hours. Then
the transmission of 310 nm light through a 1 cm sample of the oil will be
compared to that of the pristine oil.