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When isolating or ventilating a permit-required confined space, it is critical that a competent person on your team take meter readings with a 4-gas monitor for oxygen (O2), toxic gases and if applicable, combustible gases (VOCs) with a PID to determine if the processes have been effective. Of course you already know this if you or your company are performing this type of work. But are you measuring for the correct PEL levels? PEL limits change with some regularity, and what may be r …

Recently RKI Instruments sent out a notice explaining a change to their alarm settings on Eagle 2, GX-2009, and GX-2012 monitors. In order to comply with new industry standards developed by the fine folks at the American Conference of Governmental Industrial Hygienists (ACGIH), RKI Instruments is lowering their Hydrogen Sulfide (H2S) threshold limit values. These aren't the regular lower level alarms (like someone who writes blogs and has two thumbs first thought). These are the expo …