This International Standard specifies the dimensions of special warning lamps for road vehicles, in order to ensure interchangeability and accurate positioning, bearing in mind the rapid change of light intensity from such devices in a vertical cross-section of the projected beam. It also specifies (see Annex A) methods for testing the magnetic-base mountings used to install special warning lamps directly on the steel sheet of the roof or body of a vehicle (special warning lamps of Category D). NOTE In certain countries and international bodies, the term “light” is sometimes used instead of “lamp”.
ISO 4148:2004由国际标准化组织 IX-ISO 发布于 2004-11。
ISO 4148:2004 在中国标准分类中归属于: T38 照明与信号设备,在国际标准分类中归属于: 43.040.20 照明、信号和警告设备。
* 在 ISO 4148:2004 发布之后有更新,请注意新发布标准的变化。
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