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ASTM F421-07
Standard Test Method for Measuring Groove and Void Depth in Passenger Car Tires
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie Groove a Void Hĺbka v osobnom automobile Tires
NORMA vydaná dňa 1.8.2007
Informácie o norme:
Označenie normy: ASTM F421-07
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.8.2007
Kód tovaru: NS-55236
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM F421-07 :
Keywords:
depth gauge, groove depth, irregular wear, tread depth, ICS Number Code 83.160.10 (Road vehicle tyres)
Doplňujúce informácie
| Significance and Use | ||||||
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The groove (void) depth affects the tire’ability to develop tractive forces on wet pavements, snow, and soil, and its ability to resist hydroplaning. 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 | ||||||
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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 inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||
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