§ 172.527 Background requirements for certain placards.
发布08-07
生效09-08
摘要总结AI 辅助解读
本条款规定了美国境内特定危险品运输标牌（Placards）的背景技术要求。主要适用于铁路车辆及装载公路路线控制量放射性材料包裹的机动车辆。核心要求包括：背景必须为白色正方形，边长14 1/4英寸（362.0毫米），外围黑色边框延伸至边长15 1/4英寸（387.0毫米）。此外，标牌材质需符合§ 172.519关于最小耐用性和强度的规定。该规范旨在确保危险品标识在运输过程中的清晰可见性与合规性。
- (a) Except for size and color, the square background required by § 172.510(a) for certain placards on rail cars, and § 172.507 for placards on motor vehicles containing a package of highway route controlled quantity radioactive materials, must be as follows:
EC02MR91.044
- (b) In addition to meeting the requirements of § 172.519 for minimum durability and strength, the square background must consist of a white square measuring 14 1/4 inches (362.0 mm.) on each side surrounded by a black border extending to 15 1/4 inches (387.0 mm.) on each side.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-64, 46 FR 5316, Jan. 19, 1981; Amdt. 172-78, 48 FR 10226, Mar. 10, 1983]