Label abbreviations descriptions

BERYLLIUM & COMPOUNDS (as Be)‡

Chemical Identification
CAS # 7440-41-7
Formula

Be
Synonyms

Synonyms vary depending upon the specific beryllium compound.

Physical Properties
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
Analyte code (IMIS no.) 0365 (high sensitivity)
Sampling group
Sampler/Sampling media Mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) and filter spacer with Na₂CO₃ impregnated backup pad, in a 3-piece cassette [SKC 225-9001]
Sampling time*

240 min
Sampling volume (TWA)*

480 L
Sampling flow rate (TWA)*

2 L/min
Sampling volume (STEL/Peak/C)*

30 L
Sampling flow rate (STEL/Peak/C)*

2 L/min
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.
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.

Bulk/Wipe Method
Wipe Sampler/Sampling media

Wipe with Whatman smear tab. [WHA1450993]
Bulk Method

Available

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits
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
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

0.2 µg/m³ [0.1 µg/m³ Action Level]

 REL-TWA TLV-TWA PEL-TWA

0.0002 mg/m³
PEL-STEL

2 µg/m³

 REL-STEL TLV-STEL PEL-STEL

0.002 mg/m³
PEL-C REL-C TLV-C PEL-C

0.025 mg/m³
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:

Visit the ACGIH TLV site for specific data
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.
Health factors:  See NIH-NLM PubChem. IDLH

4 mg/m³
Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, TLV-A1, EPA-B1; L; CBD Notes:

Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

--/0.025 mg/m³/0.1 mg/m³

Additional Resources and Literature References

Last Updated Date : 04/03/2024