LEV Central

The Knowledge Base for LEV

HSE INDG 346 “Chromium and You”

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This HSE guide on working with Chromium was last updated in 2013. The guide discusses working with chromium and its inorganic compounds and how exposure may affect your health. This leaflet tells you about the possible health effects, the preventative measures your employer needs to apply, and the precautions you should take to protect your health….

OXYL8 Captor Hood Calculation Apps for iPhone and Android

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OXYL8 have developed a free LEV App for Android and iPhones which will (using Fletcher’s Equations) calculate the Hood Entry Velocity required for any shape of Captor Hood. The equations cannot be run backwards eg to determine Captor Distance (trust me several uni maths people have tried! :-)) but by typing in different distances into…

UKLA/HSE Guide “Safe Handling & Disposal of Metal Working Fluids”

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Joint publication by UKLA and HSE  provides guidance about maintaining water-mix MWF to prevent ill health in machine workshops. It is well known that skin disease (dermatitis) and lung disease (occupational asthma and occupational hypersensitivity pneumonitis) can occur in operators, either because their skin is regularly in contact with MWF, or because they inhale MWF…

HSE INDG365 “Working Safely with Metal Working Fluids”

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This HSE Guidance leaflet aims to help employees who work with metalworking fluids understand the main risks to their health. It contains general advice on the precautions which they and their employers can take to avoid these risks. Full leaflet can be downloaded by clicking on the URL below:-

HSE RR900 “Visualisation & Control of Solder Fume Exposure”

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The full title of this HSE research Report is in fact “Visualisation & Control of Solder Fume Exposure – a Quantitative Assessment of LEV Effectiveness”. Published in 2011 by HSE, the document was prepared by HSL. From the introduction to the Research Report:- “Colophony or Rosin Based Solder Flux Fume is a known cause of…

Dust Removal Filters for Combustible Dusts

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Very useful guide, clearly set out and with simple but effective diagrams from the Filtration Group. This information sheet looks at ATEX compliant filters for removing dusts. Click on the URL link below to be able to download a pdf copy:-

Video – “Captor Hoods – Basic Principles and Design Theory/Equations”

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Latest OXYL8 LEV training video (Aug 17) on YouTube which provides an introduction to the basic operational principles of Captor Hoods and an outline of the mathematical theory for Captors. Fletchers Nomogram equations are discussed and reference made to an OXYL8 (free to download) Excel spreadsheet which will do all the hard number crunching for…