§ 173.163 Hydrogen fluoride.
发布08-07
生效09-08
摘要总结AI 辅助解读
该条款规定了氢氟酸（无水）在美国境内运输的包装要求。核心内容包括：必须使用特定规格（如3, 3A, 4B等或UN标准）的气瓶，且充装密度不得超过气瓶水容量重量的85%（UN气瓶最大充装比为0.84）。对于专用于氢氟酸的气瓶，允许在定期检验到期时以外部目视检查替代体积膨胀测试。此外，退出氢氟酸服务的气瓶必须按规定报废或通过物理方式使其无法承压。建议相关从业者核实气瓶规格及充装比例合规性。
- (a) Hydrogen fluoride (hydrofluoric acid, anhydrous) must be packaged as follows:
- (1) In specification 3, 3A, 3AA, 3B, 3BN, or 3E cylinders; or in specification 4B, 4BA, or 4BW cylinders except that brazed 4B, 4BA, and 4BW cylinders are not authorized. The filling density may not exceed 85 percent of the cylinder's water weight capacity. In place of the periodic volumetric expansion test, cylinders used in exclusive service may be given a complete external visual inspection in conformance with part 180, subpart C, of this subchapter, at the time such requalification becomes due.
- (2) In a UN cylinder, as specified in part 178 of this subchapter, having a minimum test pressure of 10 bar and a maximum filling ratio of 0.84.
- (b) A cylinder removed from hydrogen fluoride service must be condemned in accordance with § 180.205 of this subchapter. Alternatively, at the direction of the owner, the requalifier may render the cylinder incapable of holding pressure.
[71 FR 33880, June 12, 2006]