How should the results of the Disinfection Control Paddle Tester be interpreted?

Document ID

Document ID TE5200

Version

Version 2.0

Status

Status Published

Published Date

Published Date 25/01/2018
Question
How should the results of the Disinfection Control Paddle Tester be interpreted?
Summary
Result interpretation of the disinfection control paddle testers (Catalog Number/order code 2610810)
 
Answer

Any growth on the Tryptic Soy Agar (amber side) indicates cleaning was not effective.

Any growth on the D/E Neutralizing Agar (purple side) indicates that bacteria survived cleaning. D/E Neutralizing Agar is pH sensitive and any color change from purple to yellow indicates bacterial growth.