政策法规现行有效美国危险品合规

§ 173.192 Packaging for certain toxic gases in Hazard Zone A.

效力	法规类型	发布日期	生效日期	发文机构
现行有效	部门规章	2026-08-07	2026-09-08	Code of Federal Regulations (CFR) - Transportation (Title 49)

发布08-07

生效09-08

摘要总结AI 辅助解读

本条款规定美国境内运输 Hazard Zone A（高危区A）有毒气体时的包装要求。仅允许使用特定规格钢瓶（如3A1800、UN无缝钢瓶等），且对水容量及运输方式有严格限制（如3AL仅限公路铁路）。特别针对光气（Phosgene）设定了填充密度上限、单瓶最大装载量及强制性的浸水泄漏测试程序，未通过测试或违规包装将导致货物被拒运或面临处罚。

When § 172.101 of this subchapter specifies a toxic material must be packaged under this section, only the following cylinders are authorized:

(a) Specification 3A1800, 3AA1800, 3AL1800, 3E1800, or seamless UN cylinders with a minimum test pressure in accordance with P200 of the UN Recommendations (IBR, see § 171.7 of this subchapter).

- (1) Specification 3A, 3AA, or 3AL cylinders may not exceed 57 kg (125 lb) water capacity (nominal).

- (2) Specification 3AL cylinders may only be offered for transportation or transported by highway and rail.

(b) Packagings must conform to the requirements of § 173.40.
(c) For cylinders used for phosgene:

- (1) The filling density may not exceed 125 percent;

- (2) A cylinder may not contain more than 68 kg (150 lb) of phosgene; and

- (3) Each cylinder containing phosgene must be tested for leakage before it is offered for transportation or transported and must show no leakage. The leakage test must consist of immersing the cylinder and valve, without the protective cap attached, in a bath of water at a temperature of approximately 66 °C (150 °F) for at least 30 minutes, during which time frequent examinations must be made to note any escape of gas. The valve of the cylinder may not be loosened after this test. Suitable safeguards must be provided to protect personnel and facilities should failure occur during the test. As an alternative, each cylinder containing phosgene may be tested for leakage by a method approved in writing by the Associate Administrator.

[67 FR 51643, Aug. 8, 2002, as amended at 71 FR 33880, June 12, 2006]