A-A-51687 Stirring Bar Set, (Magnetic)This commercial item description covers one type of magnetic stirring bar set for use in laboratory procedures.

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COMMERCIAL ITEM DESCRIPTION A-A-51687

The permanent magnetic metal shall have the minimum characteristics as listed in Table II.

TABLE II- Magnetic Characteristics

Workmanship. The stirring bars shall be free from defects which detract from its appearance or impair its serviceability.

Unit. Set (SE). One set containing six stirring bars, as specified, constitutes one unit.

Quality Assurance Provisions.

Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contact or purchase order, the contractor may use his own or any facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements.

Records. Records of examinations and tests performed by or for the contractor shall be maintained by the contractor and made available to the Government upon the Government’s request, at any time, or from time to time, during the performance of the contract and for a period of three years after delivery of the supplies to which such records relate.

Inspection. Inspection, as used herein, is defined as both examination (such as visual or auditory investigation without the use of special laboratory appliances or procedures) and testing (determination by technical means of physical and chemical properties) of the item.