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coffin

Cleaning Coffin Wax

Q: I read an article in a trade publication about removing coffin wax from bone using an aqueous degreaser from your company. I can’t really find what product exactly they used. A: Coffin wax or adipocere can also be known as corpse wax, grave wax or mortuary wax, is a wax-like organic substance formed by the anaerobic bacterial hydrolysis of fat in tissue, such as body fat in corpses.

Removing PFOS and PFOA from Lab Glassware

Q. We need to remove perfluorooctanoic acid (PFOA) and perfluorooctyl sulfonate (PFOS) from laboratory glassware and stainless steel. Since they are inorganic residues, we’re using acidic cleaners, but are not finding them as effective as we expected. Any recommendations?
A. PFOS and PFOA are polar, anionic surfactants. They will best be cleaned by a high-emulsifying, anionic-surfactant-containing cleaner that can make mixed micelles to efficiently remove these residues from surfaces….

triple rinse

Guidelines for Triple Rinsing

Q. is there any industry guidance on triple rinsing…any literature that you know of that this is the accepted standard for manual cleaning that you could provide me?
A. To our knowledge, there are no authoritative source documents to define how many times you should rinse glassware. The logic behind a triple rinse is that, in filling and emptying a vessel three times with water, each time you are diluting by 2 orders of magnitude. In theory . . .

Cleanroom

Cleanroom Cleaning

We are in the process of building a cleanroom for medical device manufacturing. What detergents do you recommend? For cleanroom cleaning, we would recommend liquid concentrate detergents to…..

Bleach and Detojet?

Q: We have a washer that use both Detojet and a bleach cycle.   We would like to optimize.  Can we combine?  We have read the “Bleach with Detergents for Disinfection?” article. A: A key component of Detojet® Low Foaming Liquid Detergent is indeed sodium hypochlorite (per the SDS 2.5-10%). 

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