material safety data sheet, n an informational form detailing the chemical and physical properties, hazards, and ways of safely handling a toxic chemical.
BRB means be right back. It is one of the most commonly used acronyms in online chat and texting. It communicates that the person is leaving for a moment, but will be back shortly.
br .br is the Internet country code top-level domain for Brazil. It was administered by the Brazilian Internet Steering Committee until 2005 when it started being administered by Brazilian Network Information Center. A local contact is required for any registration.