Biocides are substances used to kill or inhibit all life forms when introduced in sufficient concentration and duration. Biocides are mostly used to kill harmful organisms and control bacterial or fungal growth. There are various types of biocides such as halogen compounds, metallic compounds, organosulfurs, organic acids, phenolics, and others that are used in various applications such as water treatment, personal care, food & beverage, paints & coatings, wood preservation, and others.