WHEN OSHA's revised Respiratory Protection Standard for General Industry, 29 CFR 1910.134, became effective on April 8, 1998, it provided employers with an all-inclusive reference source for fit ...

CNET has been testing robot vacuums for years, but we're always refining our testing procedures. Here's the process we use to evaluate robot vacuums for cleaning, navigation performance, obstacle ...

Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...

ASTM published Standard E3499-25 for PIP testing, enabling faster mechanical property analysis in regulated manufacturing ...

The Izod impact test fixes one end of a notched specimen in a cantilever position by means of a vice. A striker on the arm of a pendulum or similar energy carrier then strikes the specimen. The energy ...

A total knee replacement (TKR) may sound like a pretty drastic operation, but in fact it is an increasingly routine process providing relief from pain, improved leg function and improved quality of ...