LEV Design

Centrifugal Fan – IACS Non sparking standard

The International Association of Classification Societies (IACS) have a single page document which details the requirements of Anti-Sparking fans. To download visit: https://iacs.org.uk/resolutions/unified-requirements/ur-f You are looking for the document titled UR F29 Rev6 CLN – UR F29 Non-sparking fans – …

HSE Video on LEV to control Metal Working Fluid Mist

The HSE have produced this video on controlling exposure to Metal Working Fluid mist during CNC machining. This video covers: Test methods what filtration should be in place Airflow Gauges Open top machines – can be enclosed further What happens …

IMechE “ALARP for Engineers” a Technical Safety Guide

The IMechE’s Safety and Reliability Group created this document, and it was initially published in 2021. Following feedback from key stakeholders, the report has since been revised and reissued. The IMechE Safety and Reliability Group promotes the development of safety …

HSE – “Effective Control of Gas Shielded Arc Welding Fume” RR 683

HSE inspectors have noted that, although Local Exhaust Ventilation (LEV) was often available for controlling exposure bto inert gas shielded welding fume, it frequently remained unused, due, partly to claims by welders that the LEV was responsible for removing shielding …

HSE Workplan 2021-22 Occupational Lung Disease in “Fabricated Metal Sector”

HSE’s Inspection plan for Fabricated Metal Sector (Metal Working Fluid Exposure Risks). While the dates have passed – this is likely still to be (mostly) HSE’s intentions and views on the health risks and control mitigations for the sector. Incredibly …

APPG Report – “Improving Silicosis Outcomes in the UK”

That initial Report from APPG was in response to the concerns within industry about the disproportionate effect of dust on workers’ respiratory health and in particular, respirable crystalline silica (RCS) and the impact on their lives. The intention of the …

BS EN 689 2018 “Measuring Exposure by Inhalation to Chemical Agents”

BS EN 689 is an international standard that covers the measurement of exposure by inhalation to chemical agents. BS EN 689 discusses workplace exposure in compliance with occupational exposure limit values. It specifies a strategy to perform representative measurements of exposure by inhalation to …

Environment Agency – “Fire Risk in Activated Carbon”

Activated carbon is widely used for emissions and odour treatment. Under normal operating conditions the likelihood of fire is low, however, there are certain circumstances in which fire could occur. This Technical Guide No 12 considers the risks and provides …

HSE – Top 10 Noise Control Techniques

Minimising noise is an important part of LEV design. The easiest way to achieve minimal noise, is by designing to encourage laminar flow.  i.e. No bends directly before and after a fanset, no sharp tapers and use angled branch joints …

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 …