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Phases in the evaluation of the occupational exposure to a chemical substance/API. Phase 2: Occupational exposure band-technical measures

After calculating the OEL and categorising the substance, the Occupational Exposure Band (OEB) must be obtained that will define the technical and organisational measures to be taken into account.

Control banding is defined by the NIOSH as a process in which a single technological control measure (such as general ventilation or containment) is applied to a range or band of exposures to a substance, involving a certain hazard group (such as skin or eye irritants or irritants and corrosive agents). The purpose of the banding control is to control the exposure measures.

The following figure indicates the containment classification comparing the Occupational Exposure Limit (OEL) and the Occupational Exposure Band (OEB).

Phases in the evaluation of the occupational exposure to a chemical substance/API

 

After identifying the OEB, the strategy must be determined that is to be followed, as shown in the following diagram:

Occupational exposure band-technical measures 

 

Another of the essential points when selecting a containment strategy is to choose the containment equipment to be used, which is summarised in the following table:

Occupational exposure band-technical measures

Where necessary, the exposure control should be complemented by wearing Personal Protective Equipment (PPEs).

These measures must be regularly reviewed to ensure adequate protection over time.

We at Azierta have an expert toxicology team (AETOX, EUROTOX and ERT accredited) in determining occupational exposure limits and in APIs Categorization, which associates the exposure limits with specific safety measures (engineering control, standardised work processes and safety equipment). Our multi-discipline Occupational Health and Safety team has the expertise, moreover, to design complete health vigilance protocols to ensure safe work environments.

If you wish to learn more about this aspect of our work, visit Azierta: OEL and API Categorisation and follow us on our social networks

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