Keysight N9938-90003 User’s Guide                                                            297
Safety Considerations
Battery Markings
Taiwan’s safety and EMC compliance mark.
Indicates the time period which no hazardous or toxic substance elements are 
expected to leak or deteriorate during normal use. Ten years is the expected 
useful life of the product.
This symbol indicates the Environmental Protection Use Period (EPUP) for the 
product’s toxic substances and for the China RoHS requirements.