Lithium be cut with a knife. When cut, it possesses a silvery-white color that quickly changes to gray as it oxidizes to lithium oxide. While it has one of the lowest melting points among all metals (180 °C), it has the highest melting and boiling points of the alkali metals. Lithium has a very low density (0.534 g/cm), comparable with pine wood. It is the least dense of all elements that are solids at room temperature; the next lightest solid element (potassium, at 0.862 g/cm) is more than 60% denser. Furthermore, apart from helium and hydrogen, it is less dense than
Australian Fair Pay and Conditions Standard and enforce valid claims. The Standard was replaced by the National Employment Standards when the Rudd Government passed the new "Fair Work Act 2009" on 1 January 2010. Because the changes under WorkChoices largely relied on the corporations power under the Australian Constitution, the Standard did not apply to all Australian workers. It applied to all employees in Victoria, the ACT, the Northern Territory, Christmas Island and Cocos (Keeling) Island because they were already within the federal workplace relations system. In Victoria, the application of the Standard (although universal) was slightly different in terms of how wage rates were adjusted