with construction work to assure conformance with approved
drawings and specifications.
If approved, approval shall
be indicated on each copy by appropriate stamp and date.

Copies of all approved shop or working drawings shall
be made available to the Contracting Officer.

b. Fixtures and Equipment Data - On completion
of the construction, the Contractor shall deliver to the
Contracting Officer copies of manufacturers' catalog
data covering all fixtures and mechanical equipment in-

stalled in the buildings.
The manufacturer's catalog
data shall include full identification of the equipment
or fixture, capacities, current characteristics, dimenSions, and identification of replacement parts.
Operating
instructions for installed equipment shall be furnished
and conspicuously mounted by the Contractor at places
designated by the Contracting Officer.
ce.

Samples -

If the Contracting Officer re-

quires that the Contractor submit for prior approval

samples of materials proposed for use in the work coverai by the contract, the Contractor shall make no commitments for such materials
until the submitted samples
has been approved by the Contracting Officer.
ad.
Standard Stock Articles - All materials,
Supplies and articles furnf{shed shall, wherever practicable, be standard products of recognized, reputable manu-facturers. Any changes required in the details and dimenSions indicated on the drawings, for the substitution of
Standard products other than those provided for,

shall be

properly made as approved by the Contracting Officer.
e.

Standard Tests, Qualities and Guarantees:

(1)

All materials, supplies and parts

and assemblies thereof entering into the work to be done
under these specifications shall be tested as specified
herein, or, if not specified, in conformity with Article
III of the contract and according to the best modern
approved method for the particular type and class of
work.

(2)

Unless otherwise authorized or

directed, where standard published specifications of

recognized authorities or organizations are specified,

the latest revisions of such specifications current at
the time the work is executed shall govern.

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