There is a wide variety of chemical reagents in laboratories, making safety a critical concern. Improper operations can easily lead to deflagration or even casualties.
According to a research article from China University of Geosciences titled “Optimization Study on the Safety Management Responsibility System in Chinese University Laboratories,” during the decade from 2010 to 2019, there were 14,543 laboratory safety accidents of various types in Chinese university laboratories alone, resulting in 29 deaths. Another article, “Causes and Countermeasures of Accidents in University Chemical and Chemistry Laboratories,” indicates that fires and explosions account for approximately 81% of total laboratory accidents in domestic universities. (Source: China Chemical Safety Association WeChat Public Account)
Why does the laboratory safety defense line repeatedly fail? How can we build a true protective barrier?
Common gas hazards in laboratories can be classified into five categories based on their chemical properties and physiological effects: flammable and explosive, toxic and harmful, asphyxiating, corrosive, and radioactive.
Typical gases: Hydrogen (H₂), Methane (CH₄), Acetylene (C₂H₂), Liquefied Petroleum Gas (LPG)
Hazard mechanism: Wide explosion limits; even a small leak can form an explosive mixture. Static electricity, sparks, high temperatures, or impacts can trigger deflagration, generating shockwaves and high-temperature flames.
Protection Key Points: Equip explosion-proof combustible gas detectors for real-time monitoring of leak concentrations. Store in cool, ventilated areas away from ignition sources and oxidizers. Use flashback arrestors to prevent flame backflow.
Typical gases:
Neurotoxins: Carbon monoxide (CO), Hydrogen sulfide (H₂S), Hydrogen cyanide (HCN)
Blood toxins: Nitric oxide (NO), Benzene vapor (C₆H₆)
Organ toxins: Chlorine (Cl₂), Ammonia (NH₃), Phosgene (COCl₂)
Hazard mechanism: Invade the body through the respiratory tract, skin, or digestive system, damaging the nervous system, blood, or organ functions. Long-term low-concentration exposure may cause chronic poisoning (e.g., benzene-induced leukemia), while high-concentration acute exposure can be fatal.
Protection Key Points: Install toxic gas detectors with multi-level alarm thresholds. Wear gas masks or positive-pressure air respirators during operations. Equip laboratories with emergency showers and eyewash stations.
Typical gases: Nitrogen (N₂), Carbon dioxide (CO₂), Argon (Ar), Methane (CH₄)
Hazard mechanism: Non-toxic themselves, but high concentrations reduce oxygen levels in the air (dangerous when oxygen concentration <19.5%). Nitrogen leaks can cause “nitrogen asphyxiation,” where victims quickly lose consciousness due to hypoxia, potentially leading to cardiac arrest.
Protection Key Points: Install oxygen concentration detectors in confined spaces, linked to ventilation systems. Perform gas purging before operations to ensure safe oxygen levels. Never enter potentially oxygen-deficient environments alone.
Typical gases: Hydrogen fluoride (HF), Hydrogen chloride (HCl), Bromine vapor (Br₂), Sulfur dioxide (SO₂)
Hazard mechanism: Strongly irritating and corrosive to the skin, mucous membranes, and respiratory tract. Hydrogen fluoride can penetrate the skin and corrode bones; hydrogen chloride forms hydrochloric acid upon contact with water, burning tissues.
Protection Key Points: Install corrosive gas detectors in laboratories and set up acid gas neutralization devices. Use corrosion-resistant materials (e.g., PTFE) for pipes and containers. Wear chemical-resistant gloves, goggles, and gas masks during operations.
Typical gases: Radon (Rn), Tritium gas (³H₂), Iodine-131 vapor
Hazard mechanism: Emit alpha, beta, or gamma rays, damaging cellular DNA and increasing cancer risk. Radon is odorless and tasteless; long-term inhalation may lead to lung cancer.
Protection Key Points: Equip high-sensitivity radioactive gas detectors for real-time monitoring of leak concentrations. Radioactive laboratories require independent ventilation systems and negative-pressure operation. Staff must wear personal dosimeters and undergo regular radiation exposure checks.
Facing the serious challenges of laboratory gas safety, Chicheng Electric leverages 22 years of technical expertise to launch an integrated solution of gas detectors + smart supervision platform, safeguarding the lifeline of scientific research.
01 Core Products: Precisely Detecting Every Danger
Chicheng Electric gas detectors use high-performance, high-quality sensors that are responsive and low-power. They can monitor leak concentrations of flammable, toxic, or harmful gases in real time. Once the target gas reaches or exceeds the preset value, the detector immediately issues audible and visual alarms and can also activate fans, solenoid valves, and other equipment, effectively ensuring laboratory gas safety.
02 Smart Cloud Platform: Making Safety “Visible and Controllable”
The Chicheng Electric Smart Cloud Platform uses technologies such as IoT and big data to achieve “unified network management” of the laboratory gas environment, creating a “visible” safety guard. By monitoring the operation status of platform equipment in real time, it enables early detection, early warning, and early handling of incidents.
The platform features comprehensive monitoring, data analysis, smart inspections, alarm linkage, smart O&M, and remote control. Through a combination of “human defense + physical defense + technical defense,” it creates an “Internet + Safety” smart laboratory model.
Safety is no small matter; prevention is key. Laboratory safety is not just a slogan but a reverence for life. Chicheng Electric is committed to using innovative technology to provide an “intelligent protective umbrella” for laboratories, ensuring that scientific exploration no longer walks alongside danger.
