OEL (Occupational Exposure Limit)

Limit value for the amount of an active substance per standard cubic metre of breathing air that a person may be exposed to over 8 hours.

Definition & unit

Relation to OEB classification

Definition & Validation

01 Definition & unit

The suitability of a filling line for certain active substances depends, among other things, on previously defined OEL values. These quantify the amount of active substance per standard cubic metre of breathing air to which a person may be exposed over eight hours without their health being adversely affected.

02 Relation to OEB classification

The clearly defined OEL values are assigned to so-called OEB classes in order to enable simple classification of filling systems. A substance with an OEL value of 3 µg/m³ is assigned to OEB class 4. In accordance with this classification, process and filling systems that handle this substance must be designed accordingly. Rhein-Plast supplies containment packaging materials for OEB classes 2–5.

03 Definition & Validation

OEL values are determined toxicologically by pharmaceutical companies and expressed in µg/m³. They are based on toxicological studies and take acute and chronic health effects into account. Compliance with the OEL in the workplace is demonstrated by APCPPE-compliant containment tests.

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