COSHH Assessment & Air Sampling
Under the COSHH Regulations, employers must assess the risks of exposure to hazardous substances in the workplace.
In a large complex workplace, COSHH can seem an overwhelming problem to some employers. From raw materials to finished products, waste materials, dust and fumes, each has its own unique properties, corrosive or toxic, by contact or inhalation. Some employers find it easier to delay thinking about it, others panic. Don’t do either! We can make the task easier for you.
Looking at each process, we will:
- Look at each area or process in turn
- Identify the substances posing a hazard – by observing the process
- Assess the intensity and extent of exposure
- Interpret exposure in the light of current standards
- Evaluate the effectiveness of control measures
- Recommend improved control if necessary
Air sampling is undertaken for a number of reasons. We use both personal sampling (where the sampler is worn by a person) and static sampling at a fixed location.
- Accurately determining employee exposure over a shift to compare against Workplace Exposure Limits
- Determining relative exposure of workers on different tasks or different machines, to help set priorities for control
- Static sampling to monitor background concentrations in the workroom
- Static sampling to monitor levels at frequently occupied workstations
- Static sampling to detect, or monitor the composition of, substances emitted from processes at specific points
The techniques of air sampling are many and varied. Direct-reading instruments are suitable for very short-term measurements. Usually it is more important to sample at a constant rate over several hours. For this, a battery-operated pump is used to draw the air through a suitable sampling medium, such as a filter or a tube of absorbent polymer or charcoal.
It’s important that an air sampling survey is designed to answer the right questions, so that the client knows exactly what to expect from the survey. For that reason we always supply a precise method statement together with a quotation after an initial visit to assess the client’s requirements.