DIN 10113-1
DIN 10113-1 Determination of surface colony count on fitment and utensils in foodareas - Part 1: Quantitative swab method
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/1997
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/1997