A-A-50476B
12. Standards compliance. The polishers shall conform to the floor-finishing machine requirements of UL 561. The data plate or listing with re-examination of the Underwriters Laboratories may be accepted as evidence that the polishers conform to this requirement. In lieu of the label or listing, the contractor may submit independent proof, satisfactory to the contracting agency, that the polisher conforms to the applicable requirements of the published standard, including methods of tests of UL 561.
Quality assurance provisions.
1. Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government.
2. Classification of inspection. The inspection requirements specified herein are classified as first article inspection and quality conformance inspection.
3. First article inspection. The first article inspection shall be performed on one oiler when a first article sample is specified in the contract or order. This inspection shall include examination and operational test as specified herein.
4. Quality conformance inspection. The quality conformance inspection shall be performed on the sample oiler selected in accordance with the inspection lot and sampling requirements. This inspection shall include examination and operational test as specified herein.
5. Inspection lot. All units of the same class, style, and size offered to the Government at one time shall be considered a lot for purposes of inspection. The sample unit shall be one complete polisher.
6. Examination. Each sample selected in accordance with the inspection lot and sampling requirements and also the first article shall be examined for compliance with salient characteristic requirements specified herein. This element of inspection shall encompass all visual examinations and dimensional measurements. Noncompliance with any specified requirements or presence of one or more defects preventing or lessening maximum efficiency shall constitute cause for rejection.
7. Operational test. The polisher shall be equipped with a polishing brush or brushes specified herein and operated for 2 hours on a waxed linoleum floor or a steel plate. The machine shall be operated at full rated voltage. Only one polisher per contract need be tested for the full 2 hours: all others in the inspection lots shall be operational tested for 15 minutes. During and after 2 hours or 15 minute operation, the polisher, shall be observed and examined for the following:
a. Quietness of operation and freedom vibration.
b. Overheating of motor.
c. Lubrication and leakage of lubricant.
d. Replacement of brush without the use of special tools.
e. Provision for feeding water to scrubbing brush.
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