A-A-2690A
4. Quality assurance provisions.
4.1 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 other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services adhere to prescribed requirements.
4.2 Inspection: It shall be determined that the sample units meet all salient characteristics stated in the requirements section of this document. Any sample containing one or more defects shall be rejected, and if the number of rejected units exceeds the acceptance number for that sample, the lot represented by the sample shall be rejected.
4.3 Test conditions: All tests shall be conducted with an air supply of 90 psig (620 kPa) measured as close to the tool as practicable. The test tool shall be connected to the air supply line by means of a 10 foot length of air hose having a hose size of 5/16 inch (inner diameter). The air supply line shall be equipped with a filter, air pressure regulator and lubricator.
4.4 First article inspection. When specified, the contractor shall furnish one sample of a completely fabricated tool for first article inspection. The sample shall have been manufactured and inspected using the same materials, processes, and methods that will be used in the production of the tools used to fulfill the terms of the contract or purchase order. The sample shall meet the requirements of this Commercial Item Description. Approval of the first article sample shall not relieve the contractor of the responsibility to furnish tools in accordance with the requirements of this Commercial Item Description. First article inspection shall consist of the following evaluation in the sequence listed: Inspection, Air consumption test, Speed test, Torque test, Sound pressure level test, Practical service test, and Examination after service test.
4.5 Production lot inspection and testing: Production lot testing shall consist of the following evaluations conducted in the sequence listed: Inspection, Air consumption test, Speed test, Torque test, and Practical service test. A sample lot shall consist of all items of same NSN offered for delivery at one time. Sampling procedure shall be in accordance with ANSI/ASQC Z1.4 at an Inspection Level S-3. The acceptable quality level (AQL) shall be 1.5 defects per 100 units tested. A sample unit shall consist of one completely fabricated tool.
4.6 Air consumption test: Air consumption shall be measured with either a certified liquid displacement meter or a flowmeter.
4.7 Speed test: Each sample tool shall be tested to determine compliance with the speed requirement specified herein. A stroboscope, tachometer or other suitable device, of sufficient capacity and accuracy, shall be used.
4.8 Sound pressure level test: The sound pressure level test shall be conducted in accordance with the applicable provisions of the Compressed Air and Gas Institute’s “CAGI-PNEUROP Test Code for the Measurement of Sound from Pneumatic Equipment.” The sound pressure level shall not exceed 85 decibels on the A weighted scale.
4.9 Practical service test: Each sample tool shall be operated for 5 minutes. The test shall duplicate a typical work application. During the test, the tool shall be checked for throttle operation, rotation, excessive noise or vibration, ease of operation, and general serviceability.
4.10 Horsepower test: Each sample tool shall be tested to determine compliance with the horsepower requirement specified herein. The test shall be conducted on a prony brake analyzer or similar system of appropriate capacity calibrated to assure readings. The tool shall be disassembled to the extend necessary to measure the torque and speed of the motor. Tool motors not developing the horsepower required in Table I shall be rejected.
4.11 Service test: A simulated service test shall be conducted for 150 hours. The test sample shall be installed in a fixture in a manner that the tool can be loaded and automatically actuated for 150 hours. A load of one pound, in addition to the
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