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Standard Test Method for Measuring Groove and Void Depth in Passenger Car Tires
NORMA vydaná dňa 1.4.2021
Označenie normy: ASTM F421-15(2021)
Dátum vydania normy: 1.4.2021
Kód tovaru: NS-1023016
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
depth gauge, groove depth, irregular wear, tread depth,, ICS Number Code 83.160.10 (Road vehicle tyres)
Significance and Use | ||||||
5.1?The groove (void) depth affects the tires ability to develop tractive forces in various operating environments. Groove (void) depth also defines the state of wear of a tire and is used in the determination of the rate of wear. |
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1. Scope | ||||||
1.1?This test method describes standard procedures for measuring the groove and void depth in passenger car tires. 1.2?Any mechanical, optical, or electronic device capable of measuring groove (void) depth can be used, but only the contact methodology is described here. Noncontact methodology is beyond the scope of this test method. 1.3?The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||
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