§ 173.175 Permeation devices.
发布08-07
生效09-08
摘要总结AI 辅助解读
本条款规定了用于校准空气质量监测设备的含危险物质渗透装置（Permeation devices）的豁免运输条件。若满足特定包装、容量及测试要求，此类装置可不受49 CFR第173子章节一般危险品规定的约束。核心限制包括：单装置危险物质总量不超过2毫升，且在55°C下不得充满；必须采用密封内包装加金属或厚塑料次级包装，并通过1.8米跌落及堆码压力测试；总重不超过30公斤。航空运输时严禁作为随身行李携带，仅可作为货物托运。
Permeation devices that contain hazardous materials and that are used for calibrating air quality monitoring devices are not subject to the requirements of this subchapter provided the following requirements are met:
- (a) Each device must be constructed of a material compatible with the hazardous materials it contains;
- (b) The total contents of hazardous materials in each device is limited to 2 ml (0.07 ounces) and the device must not be liquid full at 55 °C (131 °F);
- (c) Each permeation device must be placed in a sealed, high impact resistant, tubular inner packaging of plastic or equivalent material. Sufficient absorbent material must be contained in the inner packaging to completely absorb the contents of the device. The closure of the inner packaging must be securely held in place with wire, tape or other positive means;
- (d) Each inner packaging must be contained in a secondary packaging constructed of metal, or plastic having a minimum thickness of 1.5 mm (0.06 inches). The secondary packaging must be hermetically sealed;
- (e) The secondary packaging must be securely packed in strong outer packaging. The completed package must be capable of withstanding, without breakage or leakage of any inner packaging and without significant reduction in effectiveness:
- (1) The following free drops onto a rigid, non resilient, flat and horizontal surface from a height of 1.8 m (5.9 feet):
- (i) One drop flat on the bottom;
- (ii) One drop flat on the top;
- (iii) One drop flat on the long side;
- (iv) One drop flat on the short side;
- (v) One drop on a corner at the junction of three intersecting edges; and
- (2) A force applied to the top surface for a duration of 24 hours, equivalent to the total weight of identical packages if stacked to a height of 3 m (10 feet) (including the test sample).
- (3) Each of the above tests may be performed on different but identical packages.
- (f) The gross mass of the completed package must not exceed 30 kg.
- (g) For transportation by aircraft, permeation devices must be transported as cargo and may not be carried onboard an aircraft by passengers or crewmembers in carry-on baggage, checked baggage, or on their person unless specifically excepted by § 175.10.
[76 FR 43530, July 20, 2011, as amended at 78 FR 1087, Jan. 7, 2013]