Methods for Ascertaining the Cleaning Performance of Dishwasher Detergents (Part B,updated 2005)

摘要

In 1995,under the auspices of the German Industrial Association of the Manufacturers of Toiletries and Detergents (IKW),a working group of mechanical dishwashing experts was set up,which was joined by representatives of leading European test institutes and dishwasher manufacturers.The goal of this working group was to choose appropriate methods of simulating routine soiling in order to determine the cleaning performance of automatic dishwashing detergents.Part A of the publication presents the approach adopted by the working group and how the group found the methodology.This part.Part B,describes in detail the procedures used to test the performance of an automatic dishwashing detergent.The method was updated in 2005 by the working group.Viable alternatives ate given for appliances,dishes or chemicals which are no longer available.Phloxin B is recommended for colouring the proteins instead of ninhydrin.As regards the starch mix method an increased quantity is advised in order to allow better differentiation in the upper performance range.