DOT认证测试规定和准确性（英）

The conduct of compliance tests is quite different from development or research tests. It is extremely important that the test be conducted within the criteria specified in the particular FMVSS. The reason for this is that a test failure could lead to an owner notification and remedy campaign along with a civil penalty for the manufacturer. Such consequences can be very expensive for the company involved and the OVSC wants to be sure that its test data are accurate. As a general approach, test condition tolerances are set on the conservative side, and the width of the tolerance band in any compliance test is established based on the accuracy of test equipment utilized.

The independent laboratories under contract with OVSC are required to conduct compliance tests in accordance with the OVSC Laboratory Test Procedures. The contractors are required to write their own in-house test procedures prior to conducting compliance tests which cannot conflict with the OVSC Laboratory Test Procedures. It is the contractor s responsibility to ensure that all tolerances are maintained within the prescribed bands. The test equipment must be calibrated every 6 months unless otherwise specified with traceability to the National Institute of Standards and Technology (NIST).

Laboratory testing activities are monitored by OVSC safety compliance engineers, who make periodic visits to ensure that the correct procedures are being followed and by reviewing recent test results for accuracy. This includes verifying that required instrumentation is in place, functional, and the calibration data is within specification and up to date. This program helps to ensure that the laboratory s in-house testing procedures and equipment are within prescribed guidelines.

 

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作者:美国交通部来源:杭州沃德时间:2007-01-08
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