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ASTM D1263 Leakage Tendencies Of Automotive Wheel Bearing Greases
The test method provides a screening device that permits differentiation among products having distinctly different leakage characteristics. It is not the equivalent oflongtime service tests, nor is it intended to distinguish between wheel bearing greases showing similar or borderline leakage
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ASTM D4290 Leakage Tendencies Of Automotive Wheel Bearing Grease
This apparatus differentiates among wheel bearing greases having distinctly different high-temperature leakage characteristics. It is not the equivalent of longtime service tests
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