“Lint Free Wipes” is a term that evolved with the semiconductor industry since it’s infancy and is a descriptive way of saying the application requires a low-linting solution. A search on the internet returns a plethora of web related searches for Lint Free Wipes. The only problem is that there is technically not such thing [Read More…]
Before we address wiping techniques, we might well question the need for wiping. After all, if capillary forces hold particles to surfaces strongly enough that the particles can’t easily get airborne, why the great concern to remove the particles by wiping? The simple answer is embodied in two words: Contact Transfer. That’s the means by which [Read More…]
Web searches for “Lint Free Wipes” provide some interesting information. A Google search returns 82,300 hits. A search of “lint-free” on the American Society for Testing Materials (ASTM) site returns 265 hits, and a search of “lint-free” on the United States Pharmacopeia (USP) site returns 737 hits. Of these, three are contained in the <797> document on [Read More…]
HERE’S A LOOK at the three optimum isopropyl alcohol (IPA) concentrations found in pre-wetted cleanroom wipers. What is the Optimum IPA Concentration based on your specific application? This Technical Brief presents an overview of: Cleaning liquids: Isopropyl alcohol (IPA) Flammability ratings Transportation and storage concerns Healthcare vs. Microelectronics cleaning applications Volatile Organic Carbons (VOCs) Thank you [Read More…]
ISOPROPYL ALCOHOL (IPA) is widely accepted as a good liquid for keeping cleanroom surfaces in pristine condition. But what about methyl, ethyl, or butyl alcohol? Why aren’t these types of alcohols considered for cleanroom cleaning, too? It all comes down to performance, safety, and price. Methyl Alcohol And Evaporation At room temperature, methyl alcohol has three [Read More…]
IF YOU ARE MANUFACTURING in an aseptic environment, it’s important for your cleanroom supplies to be sterilized with a validated process. This whitepaper, written by Lynn Stanard, Berkshire’s Senior Quality Manager, will help you understand the sterilization methods used by consumables suppliers and what to look for when procuring supplies Sterile Cleanroom Management This whitepaper provides [Read More…]
HOUSEHOLD BLEACH is well known for its ability to remove stains and whiten clothes during laundering. Bleach also finds application in health care facilities with cleanrooms. Such applications include aseptic pharmaceutical suites, biomedical device manufacturing and compounding pharmaceutical facilities that require the biocidal and sterilant capabilities of bleach. Bleach solutions, which are active against bacteria, viruses, [Read More…]
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