5.1 The function of this test method is to provide numerical instrumental results indicating the bonding and/or bonding strength of the thermoplastic pavement marker to the specified cement brick substrate.

5.2 The use of this test method allows users and manufacturers to control the quality of the product and to infer the performance of thermoplastic pavement marking products. The results of these tests also provide useful information for the research and development of thermoplastic pavement marking materials.

5.3 This method has been revised to be more consistent with other ASTM coating bonding methods in test methods D4541, D5179 and D7234.

5.4 Strict adherence to the outlined procedures is necessary for the accuracy of the test method. In any case, adhesion strength should not be accepted unless this method is met.

热塑性路标材料粘合强度的含义和用途 ASTM D 4776-2022

范围
1.1 This test method provides an instrumental means for determining the adhesion strength of thermoplastic pavement marking materials using cement bricks and loading fixtures.

1.2 Values expressed in inches to pounds shall be treated as standard values. 括号中给出的值是 SI 单位的数学转换，仅供参考，不被视为标准.

1.3 本标准并非旨在解决所有问题, 如果有的话, 与其使用相关的安全问题. 本标准的使用者有责任建立适当的安全机制, 健康和环境实践，并在使用前确定监管限制的适用性.

1.4 本国际标准以《关于制定国际标准的原则的决定》中确立的国际公认的标准化原则为基础, 世贸组织贸易技术壁垒委员会发布的指南和建议.