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I am proud to announce that SAFTENG and The Chlorine Institute have renewed our partnership for another year (through 2026). Members of The Chlorine Institute receive a FREE SAFTENG membership. If you qualify, please contact me
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- 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:
DISCLAIMER: I am NOT an Industrial Hygienist, so seek help elsewhere if you find this post intriguing.
How many of you use the 95th Confidence Interval in your “Data Sampling”?
Whether it’s personal sampling, area sampling, or any sampling looking for safety data, do you attempt to achieve the 95th confidence interval?
A 95% confidence interval is a range of values, calculated...
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The following are highlights from the 2025 summary of injuries and fatalities associated with agricultural confined spaces:
No fewer than 48 cases involving agricultural confined spaces were documented, including 22 fatal and 26 non-fatal cases1, representing a 5.9% decrease over the 51 cases in 2024, and substantially lower than the 10-year average of approximately 60.
There were no fewer than...
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The tragic dry ice pool incident occurred on February 28, 2020, during a 29th birthday celebration for Russian Instagram influencer Ekaterina Didenko at the Devyaty Val pool complex in Moscow. Party organizers dumped 55 pounds of dry ice into an indoor swimming pool to create a dramatic, foggy visual effect.
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Chemical Process Safety (PSM/RMP)
Emergency Response
Hazardous Materials
OSHA Compliance
Permit Required Confined Spaces
Choosing between methane and pentane for calibrating a direct-reading combustible gas indicator (CGI) depends primarily on your specific application, the target hazards in your environment, and sensor technology constraints. But there are BOTH a “Pentane Advantage” and a “Methane Advantage”
Match the Target Gas (Best Practice for Specific Hazards)
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Chemical Process Safety (PSM/RMP)
Emergency Response
Hazardous Materials
OSHA Compliance
Permit Required Confined Spaces
When you pump reactive, highly polar, or oxidizing gases like chlorine (Cl2), chlorine dioxide (ClO2), or ammonia (NH3) through standard silicone, polyurethane, or Tygon tubing, the tubing acts like a chemical absorber/scrubber. The gas is actively consumed or trapped by the hose before it ever reaches the instrument’s sensors. This creates severe process safety and life-safety hazards due to...
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NOTE: Be sure to check your BRAND and MODEL for specifics. I have used MSA devices in this article because they are the brand I have used for 30+ years, and I am a huge fan of their products. ALL brands will have similar restrictions. ATTENTION TO these details matters!
Yes, MSA enforces strict maximum tubing lengths for direct-reading instruments. The allowable length depends on the specific...
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The National Fire Protection Association (NFPA) officially consolidated several legacy respiratory and PPE standards—including NFPA 1981 (open-circuit SCBA) and NFPA 1982 (PASS devices)—into a single unified standard: NFPA 1970. The 2025 edition mandates three (3) primary mechanical and electronic upgrades for all new structural firefighting SCBAs:
Changed EOSTI alarm set point
Mandatory Removable...
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The National Institute for Occupational Safety and Health (NIOSH) has finalized Immediately Dangerous to Life or Health (IDLH) profiles and technical analytical standards for major toxic hydrogen halides. These mandates establish airborne exposure limits to guarantee rapid worker escape under acute exposure conditions and dictate strict sampling guidelines for modern industrial hygiene.
NIOSH has...
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NIOSH issued a formal Request for Information (RFI) seeking new toxicological and human health effects data to refine the established IDLH value for ammonia (NH3), which currently sits at 300 ppm. The agency is specifically looking for updated “weight-of-evidence” research on how ammonia’s chemical mode of action—particularly rapid desensitization of olfactory receptors (smell fatigue)...
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OSHA advanced a deregulatory proposal to amend 29 CFR 1910.134 that would alter pre-use medical clearance protocols. The amendment would REMOVE the requirement for mandatory medical evaluations for employees using filtering facepiece respirators (FFRs, such as N95s) and loose-fitting PAPRs.
The agency cited substantial administrative costs to employers and noted that physicians rarely disqualify...
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According to the federal regulatory agenda, the Department of Health and Human Services (HHS) and NIOSH are finalizing major updates to respirator certification standards under 42 CFR Part 84. Targeted for a final rule in November 2026, NIOSH is establishing a new approval class for CURs. These advanced hybrid devices integrate an open-circuit Self-Contained Breathing Apparatus (SCBA) with air-purifying...
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When you think politicians can’t get any more foolish, they seem to never disappoint. Two committee members argued against a “one-size-fits-all” federal mandate, stating it imposes unfair burdens across vastly different regional climates and industries. One has to wonder if they even read the proposed standard.
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