GRAPHITE (SYNTHETIC)†

Chemical Identification
CAS # 7440-44-0
Formula
 

C

Synonyms
 

activated carbon [Note: Also see specific listing for Graphite (natural).]

Physical Properties
Physical description Black grains that have been treated to improve absorptive ability.
Boiling point Molecular weight
Freezing point/melting point Vapor pressure 0 mmHg (approx)
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
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1366 (total); request using analyte code 9135 G100 (resp); request using analyte code 9130
Sampling group
Sampler/Sampling media Tared low-ash 37 mm PVC filter, 5 microns [SLTC108] Tared Low-Ash 37 mm PVC Filter, 5 microns in 3-piece cassette with a Lumsden-Lynch vertical elutriator [SLTC114]
Sampling time*
 

240-480 min

 

240-480 min

Sampling volume (TWA)*
 

960 L

 

816 L

Sampling flow rate (TWA)*
 

2 L/min

 

1.7 L/min ±5%

Sampling volume (STEL/Peak/C)*
 

 

 

 

Sampling flow rate (STEL/Peak/C)*
 

 

 

 

Analytical method instruments Gravimetric Gravimetric
Method reference OSHA PV2121 (partially validated) OSHA PV2121 (partially validated)
Notes
 

If the net weight of the sample yields a concentration below the PEL after considering the associated SAE , the SLTC will perform no further work on the sample and the sample air concentration will be reported as the calculated gravimetric air concentration.

If the net weight corresponds to an amount greater than the PEL value after considering the associated SAE, the sample may be analyzed for  the applicable component and appropriate results will be reported.

 

If the filter is not overloaded, samples can be collected up to an 8-hour period. If the net weight of the sample yields a concentration below the PEL after considering the associated SAE , the SLTC will perform no further work on the sample and the sample air concentration will be reported as the calculated gravimetric air concentration.

If the net weight corresponds to an amount greater than the PEL value after considering the associated SAE, the sample may be analyzed for  the applicable component and appropriate results will be reported.

Special requirements
 

FOR TOTAL DUST SAMPLES, DO NOT USE A CYCLONE!!

 

 

* 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
Sampler/Sampling media
 

 

Bulk Method
Bulk Method
 

 

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
 

15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)

REL-TWA
 

 

TLV-TWA
 

2 mg/m³ (respirable particulate matter) [1988]

PEL-TWA
 

10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)

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:
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 

See Appendix D - Substances with No Established RELs.

Notes:
 

 

Notes:
 

See footnote [n].

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed Notes:
 

 

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

 

Last Updated Date : 01/29/2021