LEV Examination & Testing (Commissioning)

HSE Web – LEV FAQs

HSE’s – Frequently asked questions about LEV, everything from; Airflow, LEV Competence, An employer’s guide, Thorough Examination and Testing (TExT) to On-tool extraction and much more. Courtesy of the HSE website. LVHV/On Tool Extraction/Tip Extraction.  New Guidance on how to …

HSE OCM2 Local Exhaust Ventilation – OFFSHORE

A brief HSE guide to Offshore Local Exhaust Ventilation. Covers Commissioning, Examination & Testing, Maintenance and Operator Training HSE OCM2 LEV Offshore

Fan Handbook – Selection, Application & Design

OK it’s on Amazon.  But this is still one of the heavy weight textbooks on fans. Here is the first comprehensive guide to all aspects of modern fan technology. The book takes you through the design, selection, maintenance, and repair …

Basic Maths for LEV – Fan Laws

If you have worked through Module 1 – then this one is just a little bit more challenging. This Module looks at the Fan Laws.  these are empirical, in that they are best considered ‘approximations’ to the real world but …

BS 7989:2001 Specification for Recirculatory Filtration Fume Cupboards

BS dealing with Recirculatory Fume Cupboards.  Although published in 2001 it has been re-confirmed by BSI in 2012 To order a copy direct from BSI follow this link: BS 7989

BSRIA Guide 49/2015 – Commissioning Air Systems

BSRIA Guide BG 49/2015 explains how to commission ducted air distribution systems in buildings. The commissioning process mainly comprises the setting to work of the system fans and the regulation of system flow rates. BG 49/2015 now replaces BG 49/2013. …

CIBSE Guide TM42 – Fan Application

This CIBSE Fan application guide considers the principles of air movement and the various fan types available in order to achieve the best results. This publication has been produced not for the fan engineer but for the engineer who uses …

HSA Ireland – Local Exhaust Ventilation (LEV) Guidance

This document – available as a free pdf download is the equivalent in Ireland of HSG258 in the UK. The guidance was published by the Health and Safety Authority in Ireland and mirrors for the most part the format and content of …

MDHS 82/2 The Dust Lamp

HSE guide on the use of the Dust Lamp.  Great tool as the images on this guidance note show. MDHS 82/2 Dust Lamp The Dust Lamp will show all dust but it is particularly impressive when it comes to the …

Fletchers Nomogram – Chart

For Captor Hoods – Fletcher’s Nomogram chart for manual calculations of Hood Entry Velocity required to achieve a nominated minimum Captor Velocity at a chosen distance out from the hood (Captor Distance). All units must be in metric Select hood …