Measure of the concentration of a potentially harmful airborne chemical or physical Agent during a specified interval, such as an eight-hour workday. During this interval, the concentration of a specified substance is measured continuously (or very frequently) so that the intensity and duration of each level of exposure can be determined. The time-weighted average exposure is computed by multiplying each observed level of exposure by its duration, adding the resulting products, and dividing by the total duration.
Insurance Encyclopedia
Timing risk
1. Risk attaching to an insurer that losses become payable earlier than expected. This prevents the insurer from earning his anticipated investment income or requires the premature liquidation of assets or raising loans to satisfy the claims. Financial reinsurance methods are primarily concerned with allowing insurers to smooth out losses over time. 2. The risk that an investor buys or sells investments at the wrong time.