在国外许多国家和地区对产品、特别是与人身安全健康有关的产品实行产品质量标志制度。产品质量标志是证明产品符合某一标准或达到优质产品水平的一种符号或记号,是经过认证的一种表示方法。因此实行这种制度不仅是保证产品质量的一个手段,而且也是维护消费者利益、便于消费者选购优质产品的一个有效办法。各个国家和地区质量标志的符号或记号均不相同,常见的标志或记号如下: In many foreign countries and regions, products, especially those related to personal safety and health, implement the product quality mark system. Product quality mark is to prove that the product meets a certain standard or to achieve a high level of quality products, a symbol or mark, is a certified representation. Therefore, the implementation of this system is not only a means to ensure product quality, but also to safeguard the interests of consumers, to facilitate consumers to buy quality products, an effective way. The symbols or notations of quality marks in different countries and regions are different. Common signs or symbols are as follows: