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The tuberculosis kill claim is used as a benchmark by the CDC (federal Centers for Disease Control) to designate Pathex as an intermediate-level disinfectant suitable for use where blood and other human soils are likely. The CDC also states that any germicide with a tuberculocidal claim on the label is considered capable of inactivating a…

As people became aware of the problems with IPA alcohol, many folks discontinued the use of solvents and went with dry cleaning only. However, dry cleaning has been proven to be less than desirable. As it turns out, wiping dry on a fiber end-face will generate a static charge (technically known as a triboelectric charge)…

The phase-out of the last major ozone-depleting solvent, HCFC-225, is underway. HCFCs were a “transitional chemistry” to ease industry’s conversion from old-style ozone-depleting solvents to ozone-safe cleaners. Made by Asahi, HCFC-225 is marketed under names including “AK-225” and “AsahiKlean.”AK-225 is widely used as a carrier fluid, a defluxer, a metal degreaser, and to purge oxygen…

All of the “hazard” information about a chemical made in the USA is summarized in the NFPA ratings assigned to every product. (NFPA stands for National Fire Protection Agency.) An NFPA rating often is displayed in a diamond pattern and includes four codes, like this:“Health” means impact upon human health and well-being; a zero or…

Cleaning a wave solder machine -- or their surface mount cousins, giant SMT reflow ovens -- is a real pain. Most people use isopropyl alcohol for the job and it simply doesn't work very well.Here’s why: First, the insides of the machines become covered in spattered flux. Then those residues then get baked onto the…

Definition: What “Hygroscopic” Means In chemistry, hygroscopic describes a substance that absorbs moisture from the air. Hygroscopic materials have a strong affinity for water molecules and naturally attract them from their surroundings. This property affects many cleaning agents and chemicals used in electronics, fiber optics, and precision manufacturing.Why Hygroscopicity Matters in Cleaning Applications When a cleaning…