Dairy installations; cleaning and disinfection; consideration of the action on sealing materials
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/1984

Milk processing machinery and plant – Cleaning and desinfection – Part 2: Consideration of the effects on sealing material
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2011