The test is "not sufficiently accurate to include among the qualitative fits tests listed in Part II of Appendix A of its Respiratory Protection Standard," the agency said in its Federal Register ...

Or any other condition that may interfere with face piece seal. 9.0.1. The test subject shall be shown how to put on a respirator, proper positioning on the face, and how to set strap tension.

Evaluation of today’s serial communication links is ultimately determined by BER (bit error rate) performance–how many bits arrive at the link’s destination in ...

This file type includes high-resolution graphics and schematics when applicable. I get it—life in the lab isn’t leisurely. Impending deadlines and unexpected time sinks always seem to pull you away ...