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OEL (Occupational Exposure Limit)

The Occupational Exposure Limit (OEL), also known as the occupational exposure limit, is a limit value for the concentration of a particular substance in the air at a workplace which, according to generally accepted scientific evidence, does not adversely affect the health and well-being of workers, even if they are regularly - that is, eight hours a day or 40 hours a week - for an extended period of time,  are usually exposed to their entire working lives.

When sampling bulk materials, OEL is particularly important because it can release dust or other particles into the air that can be harmful if inhaled. These may include organics, minerals, metals, or other potentially hazardous substances. The OEL ensures that workers' exposure to these substances is limited to a safe level.

It is important to note that different countries and organizations may have different standards and methods for determining OELs. Therefore, the specific OELs for certain substances may vary from country to country. Employers are typically required to monitor compliance with OELs in the workplace and take steps to reduce exposure if limits are exceeded.