§ 172.556 RADIOACTIVE placard.
发布08-07
生效09-08
摘要总结AI 辅助解读
本条款规定了美国运输部（DOT）关于放射性物质（Class 7）运输标牌（Placard）的视觉规范。核心要求包括：标牌背景须为下半部分白色、上半部分黄色三角形；符号、文字、类别号及内边框必须为黑色；黄色三角形底部需位于水平中心线上方29mm±5mm处。该规定旨在确保危险品标识的统一性与可识别性，适用于所有涉及放射性物质陆路运输的场景。
- (a) Except for size and color, the RADIOACTIVE placard must be as follows:
ER29SE00.001
- (b) In addition to complying with § 172.519, the background color on the RADIOACTIVE placard must be white in the lower portion with a yellow triangle in the upper portion. The base of the yellow triangle must be 29 mm ±5 mm (1.1 inches ±0.2 inches) above the placard horizontal center line. The symbol, text, class number and inner border must be black.
[Amdt. 172-123, 56 FR 66264, Dec. 20, 1991; Amdt. 172-130, 58 FR 51531, Oct. 1, 1993; 65 FR 58627, Sept. 29, 2000]