Micro-examination can help determine crack origin by noting orientation, intergranular nature, presence of scale, presence of subscale, and additional microstructural characteristics can reveal the thermal history of heating and cooling at the crack location.
According to Electronics Industry Portal I-Connect007, the EU is unlikely to publish the RoHS exemptions for lead any time soon. The EU Commission is only now in the process of preparing draft legislation to be sent to the member states for consideration.
Providing lockout/tagout devices, ensuring that equipment is capable of being locked out and tagged out are other management responsibilities and are typically well in hand in the shops I visit.
At UPS, the standard work discipline of no left turns delivers results to the bottom line, while better meeting customer demand, increasing the safety of drivers and the public and reducing the resources used.