LEV Testing · Stone
From the engineering units to the joinery and vehicle shops, Stone workplaces raise fume, mist and dust that the law says must be controlled - and the control proven by a thorough examination and test.
Around Stone the engineering and fabrication units weld and machine, the joinery and timber shops cut and sand, and the vehicle shops grind and refinish. Where a workshop welds and grinds the fume and dust are real - the arc and the grinder throw off weld fume and metal dust - and the joinery and refinishing units add wood dust, oil mist and paint mist, all things a worker should not breathe.
Local exhaust ventilation is what captures it at source, and the law does not take the control on trust. Under COSHH the weld-fume arms, the wood-dust extraction and the spray and mist extraction have to be thoroughly examined and tested at least every 14 months, measured against how they are used, not just switched on and assumed to work.
CNC and manual machining raises oil mist and metal dust at the enclosure and bench that has to be captured at source.
Flour, powders and steam need capture at the mixing and process points, from bakeries to production kitchens.
Saws, sanders and routers throw fine wood dust that has to be drawn off at the tool and the bench.
Weld fume and grinding dust need capture at the arm and booth, wherever steel is fabricated.
Bodyshop spray booths and prep bays carry paint mist and solvent vapour that the extraction has to hold and clear.
Fume cupboards, safety cabinets and dental and salon extraction all count as LEV and all fall due on the same clock.
Typical jobs we handle, by sector and area - representative of the work we do, not named clients.
At an engineering unit near Stone, welding, grinding and fabricating, the system was failing to catch the weld fume and metal dust at source. We gauged capture and transport velocities, examined the ducting, and found a collapsed flexible choking the run. We specified the remedial action and, once done, re-tested and certified the control to HSG258.
At a joinery unit near Stone, running the saws, planers and sander, the extraction had lost capture and the shop was hazing by mid-shift. We checked capture at the hoods, the ducting and the filters, and found the fan and filters below the duty the process needed. We set out the fix, re-tested to confirm capture was back to spec, and certified to HSG258 with a dated label.
Condition of hoods, ducting, filters and fan - the damage, blockage and wear that quietly drops performance.
Measured capture and face velocities at the working points, plus transport velocity and static pressure through the system.
The readings assessed against how the LEV should perform to actually control the exposure - not just whether the fan turns.
Where the process warrants it, sampling to confirm the control is keeping the substance out of the breathing zone.
The point of a thorough examination and test is to prove the extraction still controls the exposure - so we measure it, we do not eyeball it. Condition, capture and face velocities, transport velocity and static pressure are checked against the design intent under HSG258, and the result is written up and labelled on the plant.
We test to the HSE's guidance, HSG258, and the job ends in a report and a label on the plant: what was measured, what passed, what needs putting right, and the date the next test falls due.
We inspect the system's condition - hoods, ducting, filter and fan - and identify how it is meant to control each process.
We take the readings: capture and face velocities, duct transport velocity and static pressure at the key points.
We assess the readings against the benchmark and set out clearly whether the system is controlling the exposure.
The system is labelled with the test result and next-due date, and you get the report for your COSHH file.
No more than every 14 months under COSHH Regulation 9, and sooner for certain higher-risk work. We judge the right interval for your process and put the next-due date on both the plant label and the report.
An HSG258 thorough-examination-and-test report, a clear pass or fail at every point with remedials listed, and a dated plant label carrying the next test date.
We set out exactly what failed and why - often a single reading such as static pressure or capture velocity - so it can be put right, and we re-test to confirm the control before certifying.
Yes - the Stone workshops and units, and across Stone and the wider Staffordshire.
No - any LEV: welding fume arms, wood and grain dust systems, spray booths, mist extraction, fume cupboards, and dental and salon extraction all fall under the same duty and the same clock.
Welding, grinding, sawing, sanding and spraying go on across Stone, and each throws off something a worker should not breathe - weld fume, metal and wood dust, oil mist and paint mist. The duty is to control it at source and prove the control with a measured test.
We have carried out LEV thorough examination and testing to HSG258 since 2001, across Staffordshire and the UK. From a machine shop to a joinery, a spray booth or a lab fume cupboard, the job ends the same way: measured readings, a clear verdict, and a label whose next-due date you can rely on.
Tell us what you run and we will examine, measure, report and label it to HSG258 - across Staffordshire.
