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young black haired girl duct taped outside on the iron container
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Young Black Haired Girl Duct Taped Outside On The Iron Container

• Usage on ductwork
The product now commonly called duct tape should not be confused with special tapes actually designed for sealing heating and ventilation ducts: this is not recommended by manufacturers. To provide lab data about which sealants and tapes last, and which are likely to fail, research was conducted at Lawrence Berkeley National Laboratory Environmental Energy Technologies Division. Their major conclusion was that one should not use common duct tape to seal ducts. (They defined duct tape as any fabric-based tape with rubber adhesive.) The testing done shows that under challenging but realistic conditions, duct tapes become brittle and may fail. Commonly duct tape carries no safety certifications such as UL or Proposition 65, which means the tape may burn violently, producing toxic smoke; it may cause ingestion and contact toxicity; it can have irregular mechanical strength; and its adhesive may have low life expectancy. Its use in ducts has been prohibited by the state of California and by building codes in most other places in the U.S. However, metalized and aluminum tapes used by professionals are still often called "duck/duct tapes".
• Usage in spaceflight
According to NASA engineer Jerry Woodfill, duct tape had been stowed on board every mission since early in the Gemini days. NASA engineers and astronauts have used duct tape in the course of their work, including in some emergency situations. One such usage occurred in 1970, when the square carbon dioxide filters from Apollo 13's failed command module had to be modified to fit round receptacles in the lunar module, which was being used as a lifeboat after an explosion en route to the moon. A workaround used duct tape and other items on board Apollo 13, with the ground crew relaying instructions to the flight crew. The lunar module's CO2 scrubbers started working again, saving the lives of the three astronauts on board.

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Filename:483399.jpg
Album name:Babes
Rating (1 votes):55555
Keywords:#young #black #haired #girl #duct #taped #outside #iron #container
Filesize:136 KiB
Date added:Jun 04, 2012
Dimensions:721 x 1067 pixels
Displayed:135 times
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