Beryllium & beryllium compounds (as Be)
NIOSH RELCa C 0.0005 mg/m³ See Appendix A
OSHA PELTWA 0.0002 mg/m³
STEL 0.002 mg/m³ (15 minutes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Remove:When wet or contaminated
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus