Respirator Fit Testing and Daily Seal Checks: The Difference
For tight-fitting respirators, face fit matters alongside filter selection. Fit testing and the seal check performed each time a respirator is donned have different roles.
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37 articles · showing 20–37
WBGT, Heat Stress and Thermal Comfort: Different Questions
Air temperature alone cannot explain workload, radiant heat or the effect of protective clothing. Start by distinguishing thermal comfort assessment from heat stress screening.
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Before Noise Monitoring: A Practical Field Checklist
Effective dosimeter selection starts with a clear measurement objective and a realistic picture of the worker’s tasks. One instantaneous sound level cannot describe exposure accumulated across changing activities.
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What is Ammonia? NH3 Gas Detectors, Measurement and Fixed Monitoring Systems
Properties and risks of ammonia (NH3) gas; gas detector selection, sensor placement, measurement ranges, alarms, ventilation, bump testing, and calibration strategy.
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CO and NO2 Gas Detectors in Car Parks: How to Control VFD Ventilation?
Carbon monoxide and nitrogen dioxide accumulation in enclosed car parks, sensor placement, and demand-controlled VFD fans via 4–20 mA.
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Fixed Gas Detector or Portable Gas Detector? Selecting the Right System
Advantages, limitations, and combined application scenarios of fixed gas detection systems and portable gas monitors.
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CETCI LPT Gas Detector: Video, Calibration and User Guide
CETCI YES AIR, YES Plus LGA, LPT, QCC, DCC, and SCC product videos, along with Turkish training links for calibration and alarm configuration.
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How to Position Ammonia, CO and NO2 Gas Detectors in Ice Rinks?
Chiller room ammonia, ice sheet CO/NO₂, and maintenance bay propane/methane monitoring architecture in ice rinks and arena facilities.
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Ammonia Gas Detectors in Cold Stores: NH3 Leak and Alarm System Design
NH₃ sensor placement, QCC controller, alarm setups, and low-temperature operation specifics in cold storage and freezer room applications.
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CO2 Gas Detectors and Oxygen Deficiency Monitoring Systems in Wineries
Fermentation-derived CO₂ accumulation, oxygen depletion, sensor placement, and QCC-controlled alarm/ventilation schemes in winemaking.
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Refrigerant Gas Detectors and Leak Detection Systems in Chiller Plant Rooms
Infrared refrigerant sensors, low-level mounting, QCC control, fan actuation, and chiller shutdown sequences in plant rooms housing dual chillers.
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Chlorine and Ozone Gas Detectors in Indoor Pools: Cl2 and O3 Leak Monitoring
Cl₂/O₃ leak monitoring, sensor mounting, QCC/DCC control, and ventilation sequences in pool chlorine dosing rooms and ozone generator rooms.
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Refrigerant Leak Detectors in Hotel Rooms: Air Conditioning Refrigerant Monitoring
Remote sensor monitoring of refrigerant leaks in hotel room air conditioning systems, A/C shut-off relays, and BAS integration.
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CO2 Gas Detectors and Oxygen Monitoring Systems in Breweries
CO₂ accumulation, O₂ deficiency, sensor placement, and automated alarm-ventilation systems in brewery fermentation cellars and bottling halls.
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Ethylene and Carbon Monoxide Monitoring in Greenhouses: Continuous Gas Tracking for Plant Health and Safety
Ethylene (C2H4) and carbon monoxide (CO) monitoring in modern greenhouse operations; evaluated for plant health, combustion-related risks, continuous gas tracking, alarms, and ventilation automation.
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What is Formaldehyde? Health Risks, Exposure and Formaldehyde Measurement Methods
An examination of formaldehyde sources, health risks, and measurement methodologies ranging from instantaneous on-site spot checks to occupational hygiene sampling and continuous fixed monitoring.
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What is Sound? Fundamentals of Sound Power, Sound Pressure, Decibels and Frequency
The distinction between sound power and sound pressure, decibels, frequency weightings, octave band analysis, and the correct approach to acoustic measurement explained technically and clearly.
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Noise Measurement and Evaluation of Personal Noise Exposure
Accurate exposure assessment addressed through Leq, LEX,8h, TWA, noise dose, Lpeak, frequency weightings, and personal noise dosemeters.
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Hydrogen Cyanide (HCN) Measurement: Rapid Field Checks with Kitagawa Detector Tubes
Hydrogen cyanide (HCN) is an extremely toxic chemical that can pose serious health risks even at low concentrations. This article covers Kitagawa 112SB and 112SC detector tubes, the AP-20 pump, measurement ranges, and proper tube selection.
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TBM and THT Measurement in Natural Gas: Kitagawa Detector Tube Method
Learn how concentrations of tert-butyl mercaptan (TBM), other mercaptans, and tetrahydrothiophene (THT) in natural gas samples can be checked on site using Kitagawa colorimetric detector tubes.
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The World's Most Capable Dust – Gas – Air Sampling Pump Has Been Updated
The latest Gilian software update, Gilian CONNECT, enables users to migrate legacy data and continue reporting, analysis, and archiving operations using the new, advanced Gilian software.
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What is Noise? Noise Measurement Methods
Noise is one of the most critical physical agents to which workers are exposed. As a physical agent, noise can inflict immediate damage on hearing while also possessing the potential to adversely affect long-term auditory health through cumulative impairment. Due to these attributes, noise ranks among the most closely scrutinised occupational hygiene parameters.
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Gas Concentration Units: Which One to Use, Why and Where?
What distinguishes a number from data is its unit. Units enable us to understand what we are dealing with when collecting data, conducting measurements or analyses, and generating or interpreting graphs. Consequently, understanding units frequently used during gas measurement and analysis, such as %VOL, PPM, and %LEL, enables us to better interpret collected data.
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Occupational Safety and Environmental Measurement Parameters Air Quality Measurement Parameters and Measurement Methods
One concept frequently encountered in professional life is Industrial Hygiene. In this article, we address the scope of Industrial Hygiene and the characteristics of airborne contaminants within this context. Please refer to our other articles for information on additional components of Industrial Hygiene, such as noise, thermal comfort, lighting, vibration, and electromagnetic pollution, as well as the methods and protocols used to measure these parameters.
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What is an Explosive Atmosphere?
In this article, we aim to explain the meaning of terms frequently heard in industry, such as “Ex-proof” and “Explosive Atmosphere”, and explore what measures can be taken regarding this critical subject for personal and environmental safety.
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What is Ex-proof?
Now let us examine closely the term “Ex-proof”, which is frequently heard in industrial settings and often confused with the phrase “explosive atmosphere”, reviewing what it means and why it is so critical.
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Ex-proof Classifications
Areas with potentially explosive atmospheres are classified into zones; equipment to be deployed must likewise be divided into groups and categories. As noted in our “What is Ex-proof” article, the marking on the nameplate of certified equipment indicates the specific zone in which explosion-protected equipment may be operated.
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What is a Gas?
Gas is an essential constituent of human life. The air we breathe is a mixture of diverse gases, primarily oxygen and nitrogen. Gas derives from the word chaos (= disorder, confusion). This is because gases are clusters of molecules that move randomly and chaotically, colliding with one another and with everything around them. Gases present in a space blend rapidly, diffusing with great velocity to occupy the smallest available void.
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Fixed Gas Detection Systems and Portable Gas Detectors
Gas is an essential constituent of human life. The air we breathe is a mixture of diverse gases, primarily oxygen and nitrogen. Gas derives from the word chaos (= disorder, confusion). This is because gases are clusters of molecules that move randomly and chaotically, colliding with one another and with everything around them. Gases present in a space blend rapidly, diffusing with great velocity to occupy the smallest available void.
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From Heath Consultants: Specialists in Natural Gas Leak Surveys Since 1933
For over 85 years, Heath has operated as an internationally experienced firm specialising in natural gas leak detection. To date, it has introduced the industry's most advanced gas leak detection instruments to the market. From the era when Detecto-Pak I was manufactured to today's state-of-the-art Detecto-Pak-Infrared, Heath has protected not only gas infrastructure integrity, but also the communities connected to it.
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AIPHONE: Counter Intercom System with Acoustic Tube Technology
Ensures clear communication with customers at service counters, ticket booths, and teller windows for secure transactions. Allows staff to work safely behind glass without loss of acoustic clarity.
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Blackline Safety G7c Wireless Personal Safety Equipment
Gas Detector with Interchangeable Cartridges and Lone Worker Safety (*Man Down)
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Handheld Air Sampling Pumps with High Flow Range
With the air sample pumps specified below, you can perform air sampling up to 12,000 cc/min. These highly portable instruments allow you to handle all demanding applications.
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The World's Finest Nose: Japanese Shinyei Odour Monitors
3 distinct models engineered specifically for varied environments
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DP-IR+ Natural Gas Detector Mobile App from Heath Consultants
Heath Consultants' state-of-the-art portable natural gas leak detector, the DP-IR, introduces a major innovation.
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Auxiliary Equipment for Mitigating Coronavirus
COVID-19 entered our lives abruptly and shaped everything over the past year. While the arrival of vaccines brought optimism, all research indicates that we must adapt to living under pandemic conditions for a while longer.
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Novel Gas – Developments in VOC Sampling Products and Sorbent Tubes
Sorbent tubes are sampling consumables widely utilised in Industrial Hygiene to sample hazardous gases and vapours in air.
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RMLD-CS Laser Methane Detector
The second-generation RMLD series instrument, the RMLD-CS™ Laser Methane Detector, is ready for demonstration during our visit
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TSI SidePak AM520 Personal Real-Time Dust Monitor: A World First!
From globally renowned laboratory instrument manufacturer TSI: a Personal Dust Monitor designed for personal dust exposure measurements that operates without requiring ANY ADDITIONAL EQUIPMENT.
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Innovations in Zefon Sorbent Tubes
Zefon International, for whom we act as Turkey distributor, has introduced awaited improvements in sorbent tube manufacturing to the measurement sector. As NOVEL LTD., we consider it an important duty to share this technical information with you.
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