3.78 L/s 8.0 cfmfor coarse bubble diffusers. Certification shall include
description of test procedure, test data, and calculations of oxygenated
capacity. Data shall also be furnished to substantiate that the
manufacturer's diffuser layout can achieve mixing and adequate velocities
for the geometry of the basins.
1.6.12
Mechanical Aerators
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NOTE: Delete paragraph when step aeration type or
complete mixing type is specified or when mechanical
aerator is not allowed for extended aeration type.
Mechanical aerator may not be suitable for use in
areas having prolonged periods of sub-freezing
temperatures when spray may form accumulation of
ice. Consideration should be given to temperature
and detention time of the liquid and freeboard in
the tank in determining temperatures that may be
tolerated. Mechanical aerator is not suitable for
extended aeration type where eventual conversion to
step aeration is contemplated.
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Submit certification that the aerator has an oxygenation capacity of 1.36 kg
3.0 lb of oxygen per electrical input watt per hour horsepower per hour,
when tested under standard conditions in clear tap water at 20 degrees C 68
degrees F and zero D.O. Certification shall include description of test
procedure, test data, and calculations of oxygenated capacity. Data shall
also be furnished to substantiate that the manufacturer's aerator can
achieve mixing and adequate velocities for the geometry of the basin as
indicated.
1.6.13
Materials Not Labeled or Certified
For materials whose compliance with organizational standards or
specifications is not regulated by an organization using their own listings
or labels as proof of compliance, submit a certificate [to the Contracting
Officer] stating that the material complies with the applicable referenced
standard or specification. This statement shall be in addition to any
proof required.
1.7
WARRANTY
1.7.1
Year 2000 (Y2K) Compliance Warranty
For each product, component and system specified in this section as a
"computer controlled facility component" provide a statement of Y2K
compliance warranty for the specific equipment. The contractor warrants
that each hardware, software, and firmware product delivered under this
contract and listed below shall be able to accurately process date and time
data (including, but not limited to, calculating, comparing, and
sequencing) from, into, and between the twentieth and twenty-first
centuries, and the years 1999 and 2000 and leap year calculations to the
extent that other computer controlled components, used in combination with
the computer controlled component being acquired, properly exchange data
and time data with it. If the contract requires that specific listed
products must perform as a system in accordance with the foregoing
warranty, then that warranty shall apply to those listed products as a
system. The duration of this warranty and the remedies available to the
SECTION 11375N
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