536/94 - Item 1: Diatomite, in the form of an off-white powder with the following physical and chemical properties: 4,7 % moisture- content, 5,6 % ignition-loss, pH 7 (10 % suspension), and 0,2 % sodium (% Na O). When calcined, the product takes 2 on a pinkish tinge. The product is used as a filter-medium. - The Trade Hub