The DIN EN ISO 15715-2006 standard specifies an instrumental method for the determination of turbidity in transparent liquids. The method is particularly suitable for Resin and Resin solutions, solvents, clear coating materials, monomers, and Miscellaneous liquids requiring transparency. By measuring the intensity of light scattered by particles as light passes through the liquid, turbidity in liquids can be objectively assessed, which is essential for ensuring mass of products such as coatings and varnishes.