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ACGIH is a 501(c)(3) charitable scientific organization that advances occupational and environmental health.
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This section has been established to help educate industry, government, and the public on what TLVs and BEIs are, and how TLVs and BEIs may best be used.
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ACGIH Digital Library
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Webinar – Sampling for Respirable Crystalline Silica to Meet the New Limit Values
Respirable Crystalline Silica exposure is probably the most serious chemical hazard of our time, given the number of workers exposed and the seriousness of the resulting disease. The ACGIH and OSHA have promulgated limit values that can be achieved with full-shift sampling, but if assessment of lower concentrations or sampling over shorter time-scales is required, the best procedure is to use higher flow rate samplers to collect larger samples. How this can be done and the limitations involved will be presented.
Webinar – Reviewing the Australian Workplace Exposure Standards
In 2019-2020, WSP undertook a review and update of 727 workplace exposure standards and notations for airborne chemical contaminants utilised in Australia for Safe Work Australia. A novel approach to setting concentration limits for chemicals deemed to be non-threshold, genotoxic carcinogens and skin notations will be discussed. Delivered by lead toxicologist, Nathan Aust, this presentation describes the history, background, scientific aspects, and overarching methodology used to undertake the process.
Webinar – The Industrial Hygiene of Chemical Weapons
The topic of the presentation is the Industrial Hygiene of three chemical weapon agents including Levinstine Mustard, VX, and GB (Sarin). The discussion will involve the common characteristics of the weapons, the chemical behavior, the current process for the rapid identification, and control of the chemical hazards involved in the demilitarization of surplus weapons.
Webinar – Considering Flow Paths in Whole Space Ventilation
The webinar seeks to introduce the concept of flow patterns to help ventilation designers make best use of directional aspects of space flows. Mixing ventilation is compared to displacement ventilation in a theoretical manner, and a case study is illustrated as a real-life example. The presentation is meant to appeal to a moderate level of experience and knowledge but also to give experts something to think about.
Webinar – Hazardous Materials & Unknown Chemical Field Testing and Classification
A detailed technical discussion of how to reliably test and classify unknown liquid and solid chemical materials using rapid, reliable simplified testing which can be used without advanced analytical field instrumentation, or in tandem with such instrumentation.
Webinar – Lab Cleanouts – A Structured Approach
Lab cleanouts have the potential to be complex and particularly dangerous operations, often ‘ripe’ with potential hazards. Potentially encountered hazard types include physical, chemical, biological, radioactive, take-home contamination, and/or a combination of these.
Webinar – Industrial Hygiene Programs in the Absence of Industrial Hygienists in EHS Organizations
This webinar will address the hassle that companies might face when it comes to managing an Industrial Hygiene or Occupational Hygiene program, especially for organizations that either don’t have professional industrial/occupational hygienists, or, if they do have them, it’s just a designation without properly fulfilling its true requirements.
Webinar – The New Forms of Governance Offer Opportunities to Reduce Occupational Risks and Increase Workers’ Well Being
This webinar will discuss Occupational Health from a global perspective as well as new models of governance. Selected examples will be given along with a discussion and conclusion.
Webinar – Controversies on the Benefits of Sitting, Standing, or Hybrid Workplaces
The webinar is in 2 parts. The first will focus on the musculoskeletal benefits and problems associated with common office work postures such as sitting, standing, or the hybrid perched posture. Seating pros and cons (support, biomechanics, discomfort/pain ) and standing pros and cons (movement, force, biomechanics, discomfort/pain, LBP) on muscle fatigue and edema, varicose vein will be discussed. In addition, possible Interventions (mobility, rest, exercises, antifatigue mats) and some myths will be discussed.
Webinar – ACGIH Velocity Pressure Calculation Method – Making It Easy!
This webinar introduces the use of the ACGIH Velocity Pressure Method for calculating both dynamic and frictional losses in an industrial ventilation system. Using Bernoulli’s Principle for mutual conversion of velocity and static pressures, this method assigns loss factors for hoods, fittings and ductings which allow the static pressure loss to be determined by the appropriate loss factor and the velocity pressure. This allows versatility and ease when computing losses for changes in system airflow or design. The ACGIH Velocity Pressure Method for calculating frictional and dynamic static pressure losses in an industrial ventilation system is a consistent, accurate and easy to use method for both system design and evaluation.