GJB150.1A-2009 The military equipment laboratory environmental test method explains the general processing requirements for the test interruption during the sand dust test, as follows:

First, the tolerance is interrupted

If the test conditions remain within the tolerance range during the test interruption (for example, a power failure that does not affect the temperature of the sand test chamber), it does not constitute an interruption. Therefore, if the environmental conditions are maintained at the correct test value during the interruption, there is no need to modify the test duration.

Second, the ultra-tolerance interrupt

1. When temperature shock, rain, sand, explosive atmosphere, vibration, noise, impact, shelling vibration, vibration-noise-temperature, explosion separation shock, ballistic impact test, ship impact test, when there is an over-tolerance interruption, press The following methods are handled:

a, the test is interrupted. When the test conditions are below the lower tolerance limit, the specified test conditions shall be re-applied from the point below the test conditions (except as otherwise specified in the various parts of this standard), and the test shall be resumed until the end.

b. The test was interrupted. When there is a test interruption, it is best to stop the test and retest with the new test piece. If the test piece is not damaged, the test can be continued, but it should be noted that if the test piece fails in the test after this point or in the subsequent test, unless it can be proved that the test condition has no effect on the test piece, otherwise The test results will be invalid. This is because the test conditions may damage the test piece, causing subsequent failures that may not occur in other cases, and therefore may result in losses due to invalid tests. However, if the damage caused by the test is only a part of the test piece, and this part has absolutely no influence on the collected data, it is known that the damage is caused by the only factor of the test (such as high temperature viscosity at the bottom of the test piece). The rubber mats are attached, and these rubber mats have no effect on the performance of the test piece.) The test piece can be repaired, the test can be re-tested, and the specified test time can be completed. After the test has been carried out, if the test piece is to be repaired to continue the test, the client's consent should be obtained to avoid objection when the test piece fails in the remaining test work.

The next section will continue to explain the sand dust test interruption method, so stay tuned!

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