The particle size analysis is constantly confronted with ever increasing demands. This is also reflected in the greater requirements made in the new standard DIN ISO 3310. In order to adapt our new Retsch Test Sieves to these new requirements, Retsch has developed a completely new manufacturing process that guarantees a previously unattained quality and consistancy in sieve production. In addition, a logistic manufacturing system makes it possible to record each and every material used within the process. Sieves with a diameter of 200 mm and 203 mm (8"e;e;) are manufactured according to this process.