If it rusts long and badly enough, the metal disappears and you're left with a pile of brownish-red powder-rust or iron oxide, which has the same composition as iron ore. Here's why. Iron atoms want to return to their normal state as iron ore, iron oxide, or rust.
Head Custodian Tasks. 1  Meet with management to analyze costs of various facility needs and establish maintenance priorities. 2  Train new employees to ensure safety, cleanliness and efficiency. 3  Oversee all tasks within the custodial department, including cleaning, services, supplies and equipment maintenance.
What is a 'Custodian' A custodian is a financial institution that holds customers' securities for safekeeping to minimize the risk of their theft or loss. A custodian holds securities and other assets in electronic or physical form. Since they are responsible for the safety of assets and securities that may be worth hundreds of millions or even billions of dollars, custodians generally tend to be large and reputable firms.