Zvezda laboratory department No.11
January 31, 1969
Test report No.7
Test object: connector gloves
The purpose of the test: Fatigue test Hermetically sealed connector
Test Procedure: After every 25 cycles of withdrawal and dressing gloves made leak test connector gloves by immersion in a bath of connector with alcohol. By the appearance of bubbles of air in the rubber seal tightness determined the fatigue test Hermetically sealed connector. Visual inspection of the connector was made after each cycle.
As a result of the endurance test occurred gust lock the belt in place of stitching.( 700 cycles) During the tests on the surface friction parts observed erase the protective layer covering the surface and a slight blurring of the metal layer. After 400 cycles, the rubber petal, as a result of destruction of the protective coating of metal appeared dark patina, not effect on the performance of the connector. After 2000 cycles appeared leaking connector gloves. after 2375 cycles ruptured rubber petal of hermetically sealed connector. The document-repost signed by the chief of design bureau Zelvinsky, dated January 31, 1969. Size 11" x 8.1/2".
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