本标准的基本目的是规定安全玻璃材料的功能特性，使其可用于机动车和机动车设备中的任何位置，其机械或光学特性或两者都是必要和适当的。例如，用于挡风玻璃的安全玻璃材料必须通过一组规定的试验要求，目前只有某些夹层安全玻璃才能满足所有这些要求；但是，如果开发的其他安全玻璃材料的性能也满足该位置规定试验的要求，则也可以使用这些材料； 类似的推理也适用于其他地点。本标准旨在实现两个目的:（1）为政府监管机构在法规中采用的标准提供依据；或（2）供机动车专员或其他人用作参考标准，在此类情况下，他们可能有酌情权采用这些或其他标准，以批准机动车设备中或其上使用的安全玻璃材料或其他物品。

It is the fundamental purpose of this standard to prescribe the functional properties of safety glazing materials in such a manner that they can be used in any place in motor vehicles and motor vehicle equipment for which they possess those mechanical or optical properties, or both, that are requisite and appropriate. For example, safety glazing materials for windshields must pass a specified group of test requirements, all of which currently can be met only by certain laminated safety glazing; however, if and when other safety glazing materials are developed which possess properties such that they, too, fulfill the requirements of the prescribed tests for this location, they may also be used; and similar reasoning would apply for other locations. This standard is designed to serve two purposes: (1) to afford a basis for standards for adoption in regulations by governmental regulatory bodies; or (2) for use by motor vehicle commissioners or others as reference standards in such cases as they may have discretionary authority to adopt these or other standards in connection with the approval of safety glazing materials or other items of use in or on motor vehicle equipment.