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DOT 7A Container
Shielded Silflex US Department of Transportation approved 50 mL and 1 L Type 7A containers are used for the handling, transportation and storage of radioactive material within the nuclear radiation shielding industry.
![radiation shielded container.jpg](https://static.wixstatic.com/media/a0c054_c8f4877db18a466e9ee53d2c0219ea94~mv2.jpg/v1/crop/x_0,y_4,w_640,h_351/fill/w_488,h_266,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/radiation%20shielded%20container.jpg)
![7a 5 gallon.jpg](https://static.wixstatic.com/media/a0c054_5b8f8641619342769c374e5f7be4997c~mv2.jpg/v1/crop/x_53,y_0,w_556,h_748/fill/w_196,h_265,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/7a%205%20gallon.jpg)
![radioactive waste transport container.jp](https://static.wixstatic.com/media/a0c054_fa41a413cfe04e639b032446902f473c~mv2_d_1440_2560_s_2.jpg/v1/crop/x_0,y_150,w_1440,h_1843/fill/w_206,h_265,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/radioactive%20waste%20transport%20container_jp.jpg)
By providing a stainless steel Silflex shielding interlayer between the source and the container we are able to achieve transportable dose reduction. With our design we were able to reduce a Co-60 source from 15 mrem/hr to under 0.5 mrem/hr.
The Silflex bismuth and stainless steel 7a containers are commonly used for shielding and transporting radioactive chemistry samples. The 7a container comes with a stepped lid to prevent radiation streaming.
![7a full container.jpg](https://static.wixstatic.com/media/a0c054_724e0129990842f0a10f503c71683263~mv2.jpg/v1/crop/x_55,y_0,w_555,h_747/fill/w_196,h_265,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/7a%20full%20container.jpg)
![7a container top.jpg](https://static.wixstatic.com/media/a0c054_ad600f8f198d4ceb8f834ce09e050c3f~mv2.jpg/v1/crop/x_11,y_0,w_749,h_716/fill/w_278,h_265,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/7a%20container%20top.jpg)
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