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ASTM F2779 PDF
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Standard Practice for Commercial Radial Truck-Bus Tires to Establish Equivalent Test Severity Between a 1.707-m (67.23-in.) Diameter Roadwheel and a Flat Surface
| Published by | Publication Date | Number of Pages |
| ASTM | 10/01/2016 | 8 |
ASTM F2779 – Standard Practice forCommercial Radial Truck-Bus Tires to Establish Equivalent TestSeverity Between a 1.707-m (67.23-in.) Diameter Roadwheel and a FlatSurface
1.1 This practice describes the procedure to identify equivalent test severity conditions between a 1.707-m diameter laboratory roadwheel surface and a flat or highway surface for commercial radial truck-bus tires.
1.1.1 Tire operational severity, as defined as the running or operational temperature for certain specified internal tire locations, is not the same for these two test conditions. It is typically higher for the laboratory roadwheel at equal load, speed and inflation pressure conditions due to the curvature effect.
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