Ana sayfa/What is an exposure scenario?
What is an exposure scenario?
An exposure scenario describes how humans and the environment are exposed to a substance across its identified uses and how the risk is controlled. It is prepared for hazardous substances requiring a Chemical Safety Report and is communicated with the extended Safety Data Sheet (eSDS). Downstream users must check whether their use is covered.
Related pages
Contact ONAY Mühendislik for KKDIK and REACH support.
What an exposure scenario describes
An exposure scenario sets out the conditions under which a substance can be used safely: the tasks performed, their duration and frequency, the quantities involved and the control measures in place. It is the part of the safety report that people on the shop floor actually feel.
What it contains
- Use description: manufacturing, formulation, industrial, professional or consumer
- Operational conditions such as duration, frequency, temperature and amount
- Risk management measures: containment, ventilation, protective equipment
- Environmental release estimates and treatment measures
- Exposure estimate and the resulting risk characterisation ratio
Measurement or modelling?
Measured workplace data give the most reliable picture but cost time and money. Modelling is fast and cheap yet rests on assumptions. Most companies model first and measure only where the result sits close to the limit, which balances budget against confidence.
Duties of the downstream user
Downstream users must compare the scenario they receive with their own conditions. Where the use falls outside the scenario, they either ask the supplier to extend it or prepare their own assessment. This check is documented in writing and is one of the first things inspectors ask for.
Related pages
Official source: KKDIK Regulation — Turkish Official Gazette.
Keeping scenarios realistic
The most common failure is a scenario built from a template rather than from what happens on the shop floor. The second is assuming protective equipment that nobody actually wears. Walk the process with the people who handle the substance before the scenario is written, and revisit it whenever the formulation or the equipment changes.