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GRAIN DUST (OAT, WHEAT, BARLEY)†
| CAS # | NO CAS |
|---|---|
| Formula | |
| Synonyms |
[Note: Grain dust consists of 60-75% organic materials (cereal grains) & 25-40% inorganic materials (soil), and includes fertilizers, pesticides & microorganisms.] |
| Physical description | Mixture of grain and all the other substances associated with its cultivation & harvesting. | ||
|---|---|---|---|
| Boiling point | Molecular weight | varies | |
| Freezing point/melting point | Vapor pressure | depends on the specific constituents | |
| 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.) | G109 (total); request using analyte code 9135 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | Tared low-ash 37 mm PVC filter, 5 microns [SLTC108] |
| Sampling time* | 240-480 min |
| Sampling volume (TWA)* | 960 L |
| Sampling flow rate (TWA)* | |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | 2 L/min |
| Analytical method instruments | Gravimetric |
| Method reference | OSHA PV2121 (partially validated) |
| Notes | |
| 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 |
10 mg/m³ |
REL-TWA |
4 mg/m³ |
TLV-TWA |
4 mg/m³ [1985] |
PEL-TWA |
10 mg/m³ |
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: |
Notes:
|
Notes:
|
Notes:
|
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| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: Not listed |
Notes:
|
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|
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 - Grain dust (oat, wheat, barley) Literature References
|
Last Updated Date : 05/30/2025