Particle Monitoring Articles
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Why is 50% the Limit for Particle Counting Efficiency Sizing Thresholds?
Particle counting efficiency is crucial in particle measurement, especially when using optical particle counters. This term denotes the likelihood of precisely detecting and enumerating particles within a specified size spectrum. In this context, the term “particle counting efficiency” represents the ability of the particle counter to quantify particles of a given size accurately. It ...
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How Particle Counting Efficiency Affects Distribution Data
In the realm of optical particle counters (OPCs), counting efficiency and resolution are pivotal in determining the accuracy and reliability of particle distribution data. These technical aspects are essential for industries that require precise environmental monitoring, such as pharmaceuticals, semiconductors, and cleanroom operations. This article dives into the impact of counting efficiency ...
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What is OPC Counting Efficiency?
Optical particle counters (OPCs) work by preserving the air quality of a cleanroom environment. To learn more about them, this article dives into OPC counting efficiency and resolution. Alongside this, it answers the key questions that you may consider when thinking about selecting and using ...
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Data Management for Environmental Monitoring in a Pharmaceutical Manufacturing Facility
What Data Management Factors Should be Considered When Setting up Environmental Monitoring in a Pharmaceutical Manufacturing Facility? Pharmaceutical Manufacturing Data Managment is one of the important steps for effective contamination control In a typical pharmaceutical manufacturing plant, there are several important tasks to ensure the product can be handled without being contaminated. All ...
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EU GMP Annex 1 FAQ’s - Environmental Monitoring
The following frequently asked questions arose at a presentation given by PMS Senior GMP Scientist, Mark Hallworth, on the 6th of December on the topic of EU GMP Annex 1 Environmental Monitoring. Is there an international standard or guideline for sampling 1m³ total particle counts and viable particles with air samplers like the MiniCapt® mobile device for routine monitoring of ...
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High-Purity Process Chemicals: Applications of 20 nm Liquid Particle Counters in Contamination Control
Abstract In the intricate landscape of semiconductor manufacturing, the relentless pursuit of smaller technology nodes necessitates a meticulous approach to controlling particle contamination. As critical particle sizes plunge into the sub-10 nm range, traditional chemical particle counters face a sensitivity gap. Bridging this gap, the Chem 20™ chemical particle counter emerges as an ...
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How to Choose the Right Cleanroom Particle Counter
Maintaining a contamination-free environment is a prerequisite for high-tech manufacturing and scientific research. Cleanrooms are central to this endeavour. Although a cleanroom is a critical part of maintaining a working environment, they cannot guarantee required cleanliness standards without robust monitoring systems such as particle counters and air quality monitors. A cleanroom particle ...
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5 Key Principles of Cleanroom Particle Counting
Cleanroom particle counting is essential for accurate functioning and meeting certification criteria in controlled environments. In this blog post, we take a look at five key principles of cleanroom particle counting, exploring the significance of each principle and how it contributes to maintaining the safety and quality of products manufactured in such ...
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The PSM 2.0: A Game-Changer in Measuring Cluster and Nucleation Mode Particles
How Airmodus revolutionized nanoparticle science with the PSM Airmodus Ltd. was originally established to bring to life a groundbreaking invention – the first-ever Particle Size Magnifier (PSM) capable of seamless 24/7 operation. In 2010, we pioneered continuous measurements of the smallest particle clusters across diverse environments, a landmark achievement that propelled scientific ...
By Airmodus Oy
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Choosing a Particle Counter
A particle counter is used for monitoring and diagnosing particle contamination within specific clean media, such as air, water and chemicals. Particle Counters have the ability to count and size particles by separating them into different size channels and can be used for room classification, room monitoring or contamination diagnosis. When choosing an aerosol particle counter, you need to ...
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Cubic Laser Particle Counter for Semiconductor Cleanroom Air Cleanliness Monitoring
According to a recent World Fab Forecast issued by Semiconductor Equipment Manufacturers International (SEMI), more than 50% of semiconductor yield losses can be attributed to micro-contamination. For minimizing yield losses, it is essential for semiconductor fabrication plants (semiconductor fabs) to adopt rigorous contamination control strategies in the cleanrooms. Particulate matter is one of ...
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Real-time wildfire monitoring
Reduce risk and exposure with real-time wildfire monitoring The number of extreme wildfire events will increase up to 14% by 2030. Monitoring fires in real time becomes more and more important to reduce health risks and take immediate actions if high-level pollutant concentrations are detected. Protecting workers from outdoor pollution caused by California wildfires Workers for a major ...
By Ecomesure
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Counting Microplastics in Wastewater
Since the explosion of plastic consumption and production starting in the 1950s, billions of tons of plastics have been produced, and microplastics form during the manufacturing, product use, and breakdown of plastics1. Due to microplastics being released during the entire product life cycle, people are exposed to microplastics in our air, food, and water. Awareness of microplastics in water and ...
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Types and principles of wind direction sensors
A wind direction sensor is a device used to measure the direction of the wind. They are commonly used in weather stations, wind turbines and other applications that require accurate measurements of wind power. These sensors are crucial in predicting weather patterns and helping us understand the effects of wind on the environment. Types of wind direction sensors There are several ...
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Optical and Condensation Particle Counters
Optical and condensation particle counters are the two main types of particle counters used for detecting and counting aerosol ...
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Air quality management in Sherbrooke
The Canadian city of Sherbrooke deploys fixed and portable air quality monitors TERA Group won the call for technological innovation projects launched by the City of Sherbrooke as part of its Validation of Pilot Technological Innovations (VITE) program. Microsensors implementation for a clearer picture of air quality in real time Under this VITE program, Ecomesure’s EcomTrek ...
By Ecomesure
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Two Heads are Better than One: The advantages of the Biral back scatter head
When it comes to automatic visibility and present weather sensors, most manufacturers opt to detect the forward scattering of infrared light via a single receiver to estimate visibility and to classify precipitation. However, the intensity of light scattering is not the same in all directions, since this is strongly dependent on the size, shape and composition of these particles. Whilst this ...
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Community Spotlight: West Coast Calibration Factor Study
Each time a PurpleAir sensor is installed, and air quality data is uploaded to the PurpleAir Map, the quality and reach of our community increases. In this post, we highlight the results from a scientific study and discuss what it means in the bigger picture. The network improves with each additional sensor, and studies like the one in this post are also part of the PurpleAir story. A TRI-STATE ...
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Atmospheric Aerosol Research - Case study
Our PC-2H Quartz Crystal Microbalance (QCM) multistage real-time cascade impactor and Microanalysis Particle Samplers have helped scientists worldwide to study particles in the upper atmospheres in all corners of the earth, over volcanoes, oceans, the Arctic and Antarctica regions. Whether it is for measuring the mass concentration and size distribution of particles in the atmosphere over an ...
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FAQ’s: Non viable particle recovery verification after a power outage
Question: “What is the need of taking a non-viable particle count after a power shut down for an hour. Our Class C area is stabilizing after 30 minutes of a power cut?” There are several reasons for deploying your Non-Viable Environmental Monitoring Program following a power outage, but primarily it is to ensure that the HVAC has been restored and is now operating optimally – ...
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