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SAFTENG has:
- Over 19,000 categorized unsafe acts/conditions and accident/injury photos
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Many THANKS to my NEW Members and those who CONTINUE to support SAFTENG:
February 16, 2021
How well do you know your RMP chemicals? I mean really know them. One of the top questions we have received in the past several years is asking about the RMP chemicals’ toxic endpoints and why EPA uses mg/L instead of ppm. PPM is a volume-to-volume or mass-to-mass ratio, whereas mg/l is a mass-to-volume relationship. We can convert from mg/L to ppm pretty easily, using...
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February 15, 2021
Almost every safety professional on the planet that works with chemicals, emergency response, and confined spaces knows that the Immediately Dangerous to Life and Health (IDLH) exposure is a game changer! But so many also struggle with what it means to actually work in an IDLH atmosphere. In this article, I want to try and explain what it means to respond to an UNCONTROLLED release of a...
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February 14, 2021
I was having your run-of-the-day safety conversation with one of my favorite former OSHA safety engineers and he was quick to point out that one of my articles was not technically “compliant” with OSHA’s 1910.146 requirements when it came to the means we can use to isolate a Permit-Required Confined Space (PRCS). The means he took issue with was my reference to what is called...
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February 14, 2021
Most of us know that a properly designed and installed ventilation system is our FIRST option for controlling hazardous concentrations of flammable vapors, gases, fumes, mists or dust, and volatile or airborne materials posing a health hazard, such as toxic or corrosive materials. And thankfully, most workstations and areas that need proper ventilation have it these days; however, we tend to...
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February 13, 2021
A hazardous exhaust system shall be required wherever operations involving the handling or processing of hazardous materials, in the absence of such exhaust systems and under normal operating conditions, have the potential to create one of the following conditions:
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February 13, 2021
There are five (5) basic types of ventilation systems:
dilution and removal by general exhaust;
local exhaust;
makeup air (or replacement);
HVAC (primarily for comfort); and
recirculation systems
Most ventilation systems generally involve a combination of these types of systems. But there are some specific requirements, that need to be met:
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February 13, 2021
Unlike a PRCS that contains ONLY physical hazards, a space containing an atmospheric hazard cannot be reclassified as a non-permit space. However, if the atmospheric hazard in the PRCS can be controlled by FORCED AIR VENTILATION, we may enter under the CONTROLLED ATMOSPHERE instead of with full permit space procedures. The alternate procedures may be used ONLY when we can show that:
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February 13, 2021
When can a PRCS be reclassified and how must one go about doing it? This is taken directly from an OSHA publication, but what caught my eye is this publication makes it clear that BOTH “reclassification” and the “alternative entry” methods can be used at the same time for the same PRCS! Pay close attention to the very last sentence and you’ll see what I mean.
I...
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February 13, 2021
With the new 2021 International Fire Code comes some interesting changes. One such change impacts how we establish how many “control areas” within our buildings and floors. Personally, I was surprised they made this change, but after close examination, it actually makes sense. So let’s look at what liberties the 2021 edition gives us in establishing our control areas…...
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February 12, 2021
I am unsure how to be any louder or more straightforward to the food industry regarding their “Tunnel Freezers.” A lot of folks are aware of the Chemical Safety Board’s investigation into the food plant accident that claimed the lives of 5 workers and injured dozens more. But did you know there was a DOUBLE fatality accident in December 2020, a month before, involving a very similar...
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February 11, 2021
This information is intended to assist in assessing the human contribution to risk, commonly known as Human Reliability Assessment (HRA). There are two (2) distinct types of HRA:
qualitative assessments that aim to identify potential human failures and optimise the factors that may influence human performance, and
quantitative assessments which, in addition, aim to estimate the likelihood of...
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February 11, 2021
A topic we have discussed many times here and if you have ever attended one of my process safety courses or presentations you have most certainly heard my dissertation on the criticality of pressure testing and leak testing and the fact that these safety-critical functions come with some serious risks, especially if the pressure testing is done pneumatically! Case in point…
Here are two...
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