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What Is the Meaning of a Fluid Toxicity Rating, Like a PEL or TLV?

In general, the “toxicity” of a cleaning fluid is measured through the use of 8-hour “time-weighted average exposure limits” (AEL). Similar terms you might find on labels and SDS sheets include “Average Exposure Limits” (AEL), “Personal Exposure Limits” (PEL) and “Threshold Exposure Limits” (TEL). One special term is “Threshold Limit Values” (TLVs) which only are…

Can I Use nPB in My Cleaning System?

nPB is a strong, affordable, versatile, nonflammable industrial solvent. nPB is a great degreaser and defluxer. However, npB does have toxicity worries. nPB is banned in Europe as of July 2020 and other countries currently have nPB under scrutiny. In the 1990s when nPb was first introduced, the toxicity level for nPB (also known as “TLV”, “AEL” or “PEL”) was…

Which Precision Cleaning Fluid Is the Mildest?

Very gentle, mild cleaning often is required when (a) cleaning substrates made from delicate materials, or (b) when the contamination is light, or (c) when the principle contamination being removed is water. Milder solvents generally are noted as having a low Kb value, typically 20-40 or so (a high Kb value is 100+). Many mild solvents…

How Can I Cost-Justify the Trigger Grip System?

It’s a funny thing — MicroCare’s biggest competitor is not some other aerosol company. Our biggest competition is cheap alcohol in a small bottle. “Dip-and-brush” cleaning is cheap to buy, but more expensive to use. In our opinion, dip-and-brush cleaning at the benchtop is an expensive way to get poor results.Remember that alcohol is hygroscopic, which…

How Do I Use the TriggerGrip™ System?

Companies around the globe have selected the TriggerGrip™ cleaning system for their benchtop cleaning. Here are the simple steps that will produce great results when cleaning with a TriggerGrip™ system:Wet. First, hold the PCB at a slight angle, supporting it on a workbench or tabletop. Position the area to be cleaned on the lowest side. Spray a…

How Do I Clean Fiber Optic Components on PCB Circuit Cards?

Using a fiber smaller than human hair, digital fiber optic networks have transformed our world. Today’s highly mobile world, with email anywhere, video on-demand and endless streaming video all is a direct result of powerful, reliable fiber optic networks. But amazingly, the signal carried by the fiber is astoundingly fragile. So cleaning connectors and end-faces…