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Current Challenges in Sampling & Analysis: Rules, Strategies, and Devices
The New Rule on Silica Demands More From Your Lab!
This study shows how an Industrial Hygiene Laboratory can meet the criteria of quantitation limits in Appendix A for the final rule on respirable crystalline silica. Dilemmas with Silica Sampling Strategies and Interpretation
Three case studies will be used as examples: (a) engraving with Tripoli, (b) food coloring process using cristobalite in mixture, and (c) drum filter mixture using 1.5% silica. Direct Reading Plus Sample Collection in One Device
The presenter takes us through a case study from a factory that can now monitor, in real-time, a whole process over a full shift and pinpoint the danger areas to industrial workers so actions can be taken to minimize their exposure. Then the same dust sample is used to correlate with the standard method and analyze the results. Studies in Real-Time Detection Systems: Measuring Exposures
Side by Side Evaluation of Real-time Personal Monitors for Respirable Dust
This study will present the side by side comparison of four real-time dust monitors tested under different conditions in a calm air chamber. There are three main outcomes: 1) the inter-unit variability for each monitor was found to be relatively low; 2) the performance of the calibrated monitors when challenged with a standard material is not consistent; and 3) dust properties and relative humidity can greatly affect the monitors' performance. Intra-Sampling Period Variability: Strengths and Weaknesses of Real-Time Detection
A non-dispersive infrared sensor was used to track carbon dioxide concentrations in real time to examine the potential to exceed the Immediately Dangerous to Life or Health (IDLH) concentration. Exposures in excess of the IDLH value were measured with high certainty, where the TWA sample results did not indicate a problem. Strengths and weaknesses of real-time detection for truly comprehensive exposure assessment that considers intra-sampling period variability will be discussed. Rapid Systems for the Detection of Legionella Bacteria
Time consuming culture methods are considered the gold standard for the detection of Legionella bacteria. Other alternative methods with short turnaround time such as antibody and DNA based methods are available and may be helpful for fast detection in outbreak situations. We discuss our experience with a qPCR system (iQ-Check – RioRad) and an antibody based detection system (Legipid – Primelab) for the rapid detection of Legionella bacteria in water samples. Real-Time Sensor Technology: Applications By IH Students
Presenters will discuss the use of sensor selection, performance and integration into various building control system configurations, use of real time sensors to validate the well mixed room exposure model, and an evaluation of the precision and accuracy of off-the-shelf, affordable air quality sensors. Explore other AIHce EXP 2018 Bundles.
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