LEV Test Instruments

HSE/UKLA “Good Practice Guide for Safe Handling and Disposal of Metalworking Fluids”

This revised publication from UKLA/HSE on good practice for safe handling and disposal of metalworking fluid (MWF) provides a guide on how to maintain MWF to prevent ill-health in machine workshops. It has been prepared by a panel of experts …

Welding LVHV Hood – Test Piece/Adaptor

Now available – a dedicated adaptable test kit containing three stainless steel tubes (different diameters) to attach to MIG LVHV welding hoods. The tube attachment permits Flowrates and hood entry Static Pressure to be measured using a Pitot tube/manometer (not …

HSE Explanation of Special Lighting Set-up to Show Invisible Paint Mist

This HSE slide show explains the importance of Tyndall lamp assessments in a spray paint application.  A Tyndall lamp uses the sunlight effect to illuminate invisible particles that you cannot see under normal circumstances. The tyndall assessment is an important …

HSG258; Controlling Airborne Contaminants at Work; A Guide to Local Exhaust Ventilation (LEV)

Controlling airborne contaminants at work; A guide to local exhaust ventilation (LEV) Third Edition, Published by HSE 2017 This is HSE’s current guide on LEV and related topics.  Here you will find recommended Duct Velocities, Captor Velocities, Face Velocities, and …

OXYL8 Captor Hood Calculation Apps for iPhone and Android

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 App permits Captor Distance calculations for Slots, Round, Rectangular and Oval-shaped …

Video – “How to Measure Captor Hood Control Distance?”

Latest OXYL8 LEV training video (Sept 17) on YouTube discusses the ways in which we can approach the verification of the Control Distance of a particular Captor Hood. More usually we use smoke release on the centreline out from the …

HSE Guide – HSG 258 – Controlling Airborne Contaminants at Work – A Guide to Local Exhaust Ventilation (LEV)

Second Edition, Published by HSE 2011 This is HSE’s current guide on LEV and related topics.  Here you will find recommended Duct Velocities, Captor Velocities, Face Velocities, and other design criteria. The various types of hoods, filters, fans and discharges …

BS EN 12021:2014 Respiratory Equipment – Compressed Gases for Breathing Equipment

This British Standard will be very useful to anyone undertaking quality/safety testing of compressed air used to supply – Respiratory protective devices – compressed air line breathing apparatus. Purchase a copy of the Standard here:- BS EN 12021: 2014

HSE Video of Smoke Clearance Testing – Smoke Dispersal in Spray Room

Short video produced by HSE showing (in fast play mode) the dispersal of smoke in an average Spray Room during clearance testing. Video can be viewed here: HSE Smoke Clearance Video Smoke generators may be purchased here: https://levshop.co.uk

Paint Booth Clearance Times – Smoke Testing HSE

This HSE Research Report from 2006 reviews commercially available (party) smoke machines which could be used for determining the clearance times of paint spray booths. ” ……….. Seven different fog machines were tested for assessing the clearance times of spray booths …