# NIOSH Pocket Guide to Chemical Hazards
Particulates not otherwise regulated | CAS
| RTECS
Synonyms & Trade Names "Inert" dusts, Nuisance dusts, PNOR [Note: Includes all inert or nuisance dusts, whether mineral, inorganic, not listed specifically in 1910.1000.] | DOT ID & Guide
Exposure Limits | NIOSH REL: See Appendix D
OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH N.D. | Conversion
Physical Description Dusts from solid substances without specific occupational exposure standards.
Properties vary depending upon the specific solid. |  |  |
Incompatibilities & Reactivities Varies
Measurement Methods NIOSH 0500, 0600
Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Breathing: Fresh air
Respirator Recommendations To be added later
Exposure Routes inhalation, skin and/or eye contact
Symptoms Irritation eyes, skin, throat, upper respiratory system
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION