Lab Equipment

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. If any items being washed have a shape that can retain dirty wash water, it can sometimes get carried into the next rinse cycle and spread all over all the items being washed. An example of a such a shape would be “U” shapes or cups. Then the parts gets dried and the residue from the dirty wash water leaves water spots. To solve this, load the items in a way to tilt them so they drain completely and do not carry dirty wash water from the wash cycle to the rinse cycle. If this is not an issue, then consider detergent dosing. If you are washing with hard tap water (high in calcium, magnesium and iron), and you are under-dosing the detergent, then there may not b

Q. We are looking to clean denatured proteins from our medical device along with baked-on desiccated blood that is not removed completely. Manual scraping removes the residual but is not acceptable. Need a cleaner that will dissolve all bio-matter. Cleaning process is to prepare device for autoclave sterilization.