Water Spots & Oil Removal: Pharma & Lab Glassware
Q. We see white water spots on cleaned and depyrogenated vials. Looks to be scale from the washer. Do you have a recommended cleaning agent for vial washing? Click to read the answer.
Ultrasonic Cleaning of Plastic Implants
Q. After machining plastic implants, what is the recommendation for an in process cleaning using a small ultrasonic tank?
A. The recommendation would be to use 1% Liquinox (a mild alkaline, emulsifying and dispersing cleaner) at a temperature well within the temperature tolerance of the plastic.
Clouding Out in Citric Acid Passivation
Q. We are performing Citrajet passivation using the procedure found in your cell phone app. When finished, there are circles of “oil” floating on the Citrajet solution, even though our parts had no oil on them. Is this normal? A: What you are seeing is not oil, but low-foaming surfactant coming out of solution…..
Pesticide Removal from Clothing
Tergazyme is a phosphate containing enzymatic additive that can supplement your regular laundry detergent to enhance removal of pesticide and other compunds.
Re-cleaning Medical Device Vendor Parts
Q. Current procedure calls for an ultrasonic bath at 69C for 20 mins with Liquinox® and DI water. Then calls for another such DI bath at 69C with NO detergent for 20 mins. Then a 1 min DI water flushing. Is Liquinox appropriate? When I clean the parts, they have already been cleaned by vendor in the exact same manner, essentially I re-clean them. Is this overkill?