Analysis methods for new work cell standards. Risk analysis and risk reduction help in dealing with the revised Robot Standard.

Abstract

The final reiterative loop of risk reduction leads to residual risk, sometimes called "tolerable risk." This is the risk with which one must live, and is typically handled through proper training, signage and personnel protective clothing. Any existing safeguards should be considered removed when performing a risk analysis. This will allow the full impact of the resulting tolerable risk (initial risk--risk reduction) to be more accurately evaluated. Trying to walk the fine line between the cost of making machine processes safe and the economics of staying competitive is not easy, and it is not the intent of the regulatory bodies to put companies out of business. However, a good rule of thumb with respect to OSHA is that if a machine process can be guarded, guard it. Otherwise the ultimate test of residual risk may be in the litigation.