BERYLLIUM & COMPOUNDS (as Be)‡
Chemical Identification | |
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CAS # | 7440-41-7 |
Formula |
Be |
Synonyms |
Synonyms vary depending upon the specific beryllium compound. |
Physical Properties | |||
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Physical description | hard, brittle, gray-white solid, metal | ||
Boiling point | 4532°F | Molecular weight | 9.0 |
Freezing point/melting point | 2349°F | Vapor pressure | 0 mmHg (approx) |
Flash point | Vapor density | ||
Specific gravity | 1.85 (metal) | Ionization potential | |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | 2349°F | |
NFPA health rating | 3 | NFPA fire rating | 1 |
NFPA reactivity rating | 0 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | 0365 (high sensitivity) | |||||
Sampling group | ||||||
Sampler/Sampling media | Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) [MAWP037A0] | |||||
Sampling time* | 240 min |
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Sampling volume (TWA)* | 480 L |
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Sampling flow rate (TWA)* | 2 L/min |
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Sampling volume (STEL/Peak/C)* | 30 L |
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Sampling flow rate (STEL/Peak/C)* | 2 L/min |
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Analytical method instruments | ICP-AES | |||||
Method reference | OSHA 1023 (fully validated) | |||||
Notes | Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. |
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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 Method | |
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Sampler/Sampling media | Wipe with Whatman smear tab. [WHA1450993] |
Bulk Method |
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Available |
On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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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 |
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PEL-TWA |
0.2 µg/m³ [0.1 µg/m³ Action Level] |
REL-TWA | TLV-TWA |
0.00005 mg/m³ (inhalable particulate matter) [2008] |
PEL-TWA |
0.0002 mg/m³ |
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PEL-STEL |
2 µg/m³ |
REL-STEL | TLV-STEL | PEL-STEL |
0.002 mg/m³ |
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PEL-C | REL-C | TLV-C | PEL-C |
0.025 mg/m³ |
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Skin notation |
N |
Skin notation |
N |
Skin notation |
Y |
Skin notation |
N |
Notes:
See 29 CFR 1910.1024, Beryllium. See 29 CFR 1910.1000 Table Z-2for any operations or sectors where the exposure limits in 1910.1024 are stayed or otherwise not in effect. |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens |
Notes:
skin, dermal sensitizer (DSEN) (soluble compounds), respiratory sensitizer (RSEN) (soluble and insoluble compounds) |
Notes:
See also California Code of Regulations, Title 8 §1535.1 Beryllium., §5205. Beryllium., and §8359.1 Beryllium. |
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Health factors: See NIH-NLM PubChem. | IDLH |
4 mg/m³ |
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Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, TLV-A1, EPA-B1; L; CBD |
Notes:
Ca |
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
--/0.025 mg/m³/0.1 mg/m³ |
Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Beryllium compound, N.O.S. NIOSH: Pocket Guide to Chemical Hazards - Beryllium and beryllium compounds (as Be) Literature References
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Last Updated Date : 01/29/2021