Siftproof Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Siftproof and links to relevant pages within the course.
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| Requirements for Packages Containing Category A Substances The primary receptacle that contains a category A substance that will be sent at ambient temperature must be glass, plastic, or metal. A method must be employed to ensure that the receptacle is leakproof or siftproof (if the specimen is a dry particulate material). Acceptable methods include: heat sealing, using a skirted stopper or metal crimp seal. If screw caps are used, they must be secured by tape, paraffin sealing tape, manufactured locking closure, or similar methods. The completed package must be able to survive a drop test of 35 ft. A package containing category A substances that will be sent by cargo aircraft must be limited to no more than 4L or 4 kg. This excludes ice, dry ice, or liquid nitrogen, if any of these are used as refrigerants.If the package will be sent on a passenger aircraft, the quantity cannot exceed 50 mL or 50 gm. If a category A specimen exceeds 50 mL or 50 gm, it must be labeled as "Cargo aircraft only." Category A substances cannot be mailed via the United States Postal Service (USPS). | View Page |
| Packaging for Category B Substances Category B substances also require triple packaging that includes: A primary receptacle Secondary packaging Rigid outer packagingAn itemized list of contents should be enclosed between the secondary packaging and the outer packaging. The primary receptacle must be leakproof or siftproof (to prevent leakage if the specimen is dry particulate material) and packaged in such a way that, under normal circumstances, it will not break. Secondary packaging must also be leakproof or siftproof (such as a sealed plastic bag). For liquids, absorbent material must be placed between the primary receptacle and the secondary packaging, and it must be in sufficient quantity to absorb the entire contents of the primary receptacle to prevent compromising the integrity of the outer packaging if breakage or leakage occurs. Each primary receptacle(s) must be limited to a volume of 1000 mL (1 L). The package containing category B substances that will be sent by aircraft must be limited to no more than 4L or 4 kg. This excludes ice or dry ice, if either of these are used as refrigerants. The completed package must be able to survive a drop test of 4 ft. | View Page |