Water Spots on Medical Devices After Washer Cleaning
Q. We are washing stainless medical devices in a washer and are getting water spots. We are using Solujet and Citrajet. What’s causing this problem?
A. Water spots typically occur because of two main reasons: the orientation of the parts in the washer is trapping dirty wash water and/or detergent dosing is insufficient.
Static and Dynamic Spray Balls for Clean in Place
Q. What are the differences between Static and Dynamic spray balls in CIP machines? A. The typical considerations in using either static or dynamic spray balls in CIP (clean-in-place) are that….
Residual Chlorine on Printed Circuit Boards
Q. We have found chlorine present on our printed circuit boards after ultrasonic cleaning and distilled water rinse. As ultrasonic cleaning detergent, we’re using either Liquinox or Detergent 8, but are unsure which one was used on affected boards. Could either be contributing to this issue?
A. It’s highly unlikely that either detergent, or your cleaning process, is the source of the chlorine residue. The cleaning process you described, if using detergent at recommended dilution levels, should successfully remove flux and process residues.
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Visit Alconox, LLC at BIOMEDevice East 2019, at the Boston Convention and Exhibition Center, May 15-16, 2019. Stop by Booth 729 to receive our unique gifts, expert technical support for your critical cleaning applications, and detergent samples. Our critical cleaning detergents remove an array…
Calculating Cleaning Agent Safety Based Limits
Q. Does Alconox provide information on calculating cleaning agent safety based limits?
A. Cleaning agent safety based limits are typically calculated from a safety factor of an acceptable daily intake (ADI), a (1/1000 or more) reduction of an LD50 preferably by the same route of administration, or reproductive hazard levels. Alconox, Inc Pharmaceutical Cleaning Validation References PDF has an entire section dedicated to cleaning agent safety based limits.
