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oxygen sensors show significant responses to atmospheric pressure changes
2025/09/15Pressure variation is a critical environmental factor that directly impacts the accuracy of detection results and the reliability of gas detectors，which is often overlooked. Significant pressure fluctuations frequently occur in environments such as d...
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Why Does Hydrogen Chloride (HCl) Always "Hide" in Chlor-Alkali Workshops? The Senior Supervisor's Method for Checking Detection Blind Spots
2025/09/12I. Why Is HCl Leakage Always "Undetectable"? In the electrolysis workshop of a chlor-alkali plant, operators smelled an irritating odor, but the handheld detector showed "0 ppm". When a long-pole probe was inserted into the gaps of pipeline flanges, ...
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Is Propylene (C₃H₆) Leak Always Hard to Detect? "Olfaction" Upgrade Plan for Old Petrochemical Plants
2025/09/12I. Why Are Trace Propylene (C₃H₆) Leaks Always Missed? In an ethylene plant area, an operator noticed a slight leak at the seal of a propylene compressor, but the handheld detector showed "0ppm". It only alarmed when the concentration rose...
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Excessive benzene (C6H6) in catalytic workshop?
2025/09/12I. "Invisible traps" for frequent excessive benzene detectionIn the catalytic reforming workshop of a petrochemical plant, when the operator patrolled with a portable benzene detector, it repeatedly showed that the concentration exceeded 25ppm (occup...
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Hydrogen Sulfide (H₂S) Protection: The Lethal Crisis Behind the Rotten Egg Odor
2025/07/10I. The Dual Faces of H₂S: Coexistence of Warning and Extreme Toxicity Hydrogen sulfide (H₂S) has a unique "rotten egg smell," yet it is also a highly toxic neurotoxin. It can be detected by the sense of smell at low concentrations (0.13ppm), but high...
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Comprehensive Analysis of Carbon Monoxide (CO) Safety Protection: A Precise Prevention and Control Guide for the Invisible Killer
2025/07/05The Lethal Threat of CO: The Overlooked "Silent Killer" Carbon monoxide (CO) is a colorless, odorless, and highly toxic gas. Dubbed the "invisible killer" for its ability to bind to hemoglobin 200 times more strongly than oxygen, it poses severe risk...
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