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RADON‡
| CAS # | 10043-92-2 |
|---|---|
| Formula |
Rn |
| Synonyms |
radon gas; alphatron; niton; radium emanation |
| Physical description | Colorless, odorless gas. | ||
|---|---|---|---|
| Boiling point | -79.1°F | Molecular weight | 222.02 |
| Freezing point/melting point | -95.8°F | Vapor pressure | |
| Flash point | Vapor density | ||
| Specific gravity | Ionization potential | ||
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | R100 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | EPERM |
| Sampling time* |
≥10 days |
| Sampling volume (TWA)* |
|
| Sampling flow rate (TWA)* |
|
| Sampling volume (STEL/Peak/C)* |
|
| Sampling flow rate (STEL/Peak/C)* |
|
| Analytical method instruments | |
| Method reference | OSHA ID-208 (partially validated) |
| Notes |
OSHA staff please contact the SLTC prior to sampling. |
| Special requirements |
|
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
| Wipe Sampler/Sampling media |
|
|---|---|
| Bulk Method |
|
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
100 pCi/L (This is the limit that a worker (over 18 years of age) can be exposed to in 40 hours in a consecutive 7 day period.) |
REL-TWA |
|
TLV-TWA |
|
PEL-TWA |
|
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
| Notes: |
Notes:
Not established |
Notes:
Not established |
Notes:
Not established |
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-1, NTP |
Notes:
|
||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
|
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Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Not listed NIOSH: Pocket Guide to Chemical Hazards - Not listed Literature References
|
Last Updated Date : 01/11/2021