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The Knowledge Base for LEV

HSE RR1126 – In-Cab Air Filtration in Plant Vehicles to Control Exposure to Hazardous Dust

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This Research Report (RR1126) by HSE, published in 2018 looked at the factors that influence the effectiveness of in-cab air filtration systems throughout their operational lifecycle, including system design, in-service use, and maintenance. The research included developing a new scientific method to evaluate filtration system efficiency whilst a vehicle is being driven. The research found:…

BS EN ISO 10882-2: 2000 Welding – Sampling Gases in the Breathing Zone

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BS EN ISO 10882-1: 2000 specifies a sampling method for welding gases generated by welding-related operations for the purpose of making personal exposure measurements in the operator’s breathing zone. It is intended to be of benefit to: agencies concerned with health and safety at work, industrial hygienists and other public health professionals, industrial users of…

BS EN ISO 10882-1:2011 Welding – Sampling Particulates in the Breathing Zone

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BS EN ISO 10882-1: 2011 specifies a sampling method for welding fume and airborne particles generated by welding-related operations for the purpose of making personal exposure measurements in the operator’s breathing zone. It is intended to be of benefit to: agencies concerned with health and safety at work, industrial hygienists and other public health professionals,…

Measuring & Controlling Emissions from Polymer Filament Desktop 3D Printers

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HSE Research Report RR1146 published 2019 which sets out to measure emissions of particulates and volatile organic compounds from desktop 3D printers and to investigate the effectiveness of control measures to reduce these printer emissions. The research found that the heated filaments emitted large numbers of very small particles and volatile organic chemicals which could…

Measurement of Capture Efficiency of On-Gun Extraction for Welding (LVHV)

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HSE sponsored Research Report RR1010 (2014) undertaken by HSL. Key Messages from this Report:- Two test methods for measuring the efficiency of integral on-gun welding fume extraction systems have been devised and assessed. As a result, Method 1 has been selected and is currently being developed by technical committee CEN/TC 121/SC 9/WG 4 (Testing and…

Assessment of Exposure to Chemical Agents in Welding Fume

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HSL Laboratories Research Report from 2000 (2000/15) which set out to re-evaluate the reliability of EH54 methods for assessing exposures to welding fume. The report concluded that while chemical composition of welding fume can be influenced by welding parameters, the variation was relatively small at <20%.  Voltage was the variable parameter which exerted the greatest…

ACGIH Manual of Recommended Practice for DESIGN: NEW 30th Edition!!

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NEW 2019 EDITION! NOW AVAILABLE! Now in its 30th Edition Since the 26th Edition, this industry standard LEV Manual has undergone several major changes and upgrades Additions include chapters on – “Organization and Evaluation of Systems”; “Metric Solutions and Tables”; and “Calculation Sheets and Methods”. This (2019) 30th Edition, incorporates changes in many of the…

Welding Fume IARC Monograph 118

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In February 2019 HSE announced that Welding Fume was to be considered a human carcinogen.  This has had a major impact across a wide range of industries and employers. Questions are arising as to what elements of the welding ‘fume’ are implicated and what control responses would be appropriate. This Monograph is the original document…

HSE Work Plan 2019-2020 – Asthmagems, Carcinogens & Respirable Crystalline Silica

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HSE have set our their Work Plan for the coming byears with particular focus on targeting sectors where carcinogens, asthmagens and RCS are regularly used, produced or process generated. They have stated that they will deal with the underlying causes of poor risk control i.e. failures in health and safety management arrangements. These include the…

HSE – Welding Fume – Changes in Enforcement

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In February 2019 HSE released a Press Note which advised of the new health warning status of welding fume.  The main points made were:- New scientific evidence that exposure to all welding fume, including mild steel welding fume, can cause lung cancer. Also limited evidence linked to kidney cancer. Now a change in HSE enforcement…