Sterilization (microbiology) equal to the probability of a non-sterile unit. For high-risk applications, such as medical devices and injections, a sterility assurance level of at least 10 is required by the United States Food and Drug Administration (FDA). A widely used method for heat sterilization is the autoclave, sometimes called a converter or steam sterilizer. Autoclaves use steam heated to under pressure. To achieve sterility, the article is placed in a chamber and heated by injected steam until the article reaches a temperature and time setpoint. Almost all the air is removed from the chamber, because air is undesired in the moist
Hermes Fastening his Sandal has retained its head and has escaped the eighteenth-century Roman restorers; it is now conserved at the Acropolis museum, Athens. Other variants include sculptures in similar, but reversed mirror-image poses, probably intended as pendants to the "Hermes Fastening his Sandal". The theme was taken up by Jean-Baptiste Pigalle in 1744, and by François Rude, who showed at the Paris salon of 1828 a "Mercury Fastening his Sandal" in plaster. Rude's god instead shows the influence of Giambologna’s famous "Mercury" (c. 1580; Florence, Bargello) Hermes Fastening his Sandal The sculptures of Hermes Fastening his Sandal, which exist in several versions, are