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2-METHYLCYCLOPENTADIENYL MANGANESE†

Chemical Identification
CAS #	12108-13-3
Formula	C₉H₇MnO₃
Synonyms	CI-2; Combustion Improver-2; manganese tricarbonylmethylcyclopentadienyl; 2-methylcyclopentadienyl manganese tricarbonyl; MMT; methylcyclopentadienyl manganese tricarbonyl

Physical Properties
Physical description	Yellow to dark-orange liquid with a faint, pleasant odor.
Boiling point	449°F	Molecular weight	218.1
Freezing point/melting point	34°F	Vapor pressure	7.3 mmHg at 212°F
Flash point	230°F	Vapor density	0.00064 at 70°F
Specific gravity	1.39	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.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
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.

Bulk/Wipe Method
Wipe Sampler/Sampling media
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		REL-TWA	0.2 mg/m³	TLV-TWA	0.2 mg/m³ [1970]	PEL-TWA	0.2 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C	5 mg/m³	REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See Manganese compounds (as Mn), 29 CFR 1910.1000 Table Z-1		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Methylcyclopentadienylmanganese tricarbonyl

NIOSH: Pocket Guide to Chemical Hazards - Methyl cyclopentadienyl manganese tricarbonyl (as Mn)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 2-Methylcyclopentadienyl manganese tricarbonyl. See annual publication for most recent information.
International Chemical Safety Cards (WHO/IPCS/ILO): Methylcyclopentadienyl manganese tricarbonyl.
Blanchard, K.T., Clay, R.J. and Morris, J.B.: Pulmonary activation and toxicity of cyclopentadienyl manganese tricarbonyl. Toxicol. Appl. Pharmacol. 136(2): 280-288, 1996.
Fishman, B.E., McGinley, P.A. and Gianutsos, G.: Neurotoxic effects of methylcyclopentadienyl manganese carbonyl (MMT) in the mouse: basis of MMT-induced seizure activity. Toxicology 45(2): 193-201, 1987.
Normandin, L., et al. : Manganese distribution in the brain and neurobehavioral changes following inhalation exposure of rats to three chemical forms of manganese. Neurotoxicology 25(3): 433-441, 2004.
Pohanish, R.P. (editor): Manganese, Tricarbonyl Methylcyclopentadienyl. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1450-1451.
Verschoyle, R.D., Wolf, C.R. and Dinsdale, D.: Cytochrome P450 2B isozymes are responsible for the pulmonary bioactivation and toxicity of butylated hydroxytoluene, O,O,S-trimethylphosphorothioate and methylcyclopentadienyl manganese tricarbonyl. J. Pharmacol. Exp. Ther. 266(2): 958-963, 1993.

Last Updated Date : 12/15/2020

1,2,4-TRICHLOROBENZENE

Chemical Identification
CAS #	120-82-1
Formula	C₆H₃Cl₃
Synonyms	unsym-trichlorobenzene; 1,2,4-trichlorobenzol

Physical Properties
Physical description	Colorless liquid or crystalline solid (below 63°F) with an aromatic odor.
Boiling point	416°F	Molecular weight	181.4
Freezing point/melting point	63°F	Vapor pressure	1 mmHg
Flash point	222°F	Vapor density	6.26
Specific gravity	1.45	Ionization potential
Lower explosive limit (LEL)	2.5% at 302°F	Upper explosive limit (UEL)	6.6% at 302°F
NFPA health rating	2	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.)	2481
Sampling group
Sampler/Sampling media	PTFE filter & XAD-2 (100/50 mg) [SKC 225-17A & SKC 226-30-4]
Sampling time^*
Sampling volume (TWA)^*	3-12 L
Sampling flow rate (TWA)^*	0.01-0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC
Method reference	NIOSH 5517 (fully 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.

Bulk/Wipe Method
Wipe Sampler/Sampling media
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		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	5 ppm (40 mg/m³)	TLV-C	5 ppm [1975]	PEL-C	5 ppm (40 mg/m³)
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: EPA-D		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 1,2,4-Trichlorobenzene

NIOSH: Pocket Guide to Chemical Hazards - 1,2,4-Trichlorobenzene

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,2,4-Trichlorobenzene. See annual publication for most recent information.

Last Updated Date : 12/14/2020

CATECHOL

Chemical Identification
CAS #	120-80-9
Formula	C₆H₆O₂
Synonyms	1,2-benzenediol; o-benzenediol; 1,2-dihydroxybenzene; o-dihydroxybenzene; 2-hydroxyphenol; pyrocatechol

Physical Properties
Physical description	Colorless, crystalline solid with a faint odor.
Boiling point	474°F	Molecular weight	110.1
Freezing point/melting point	221°F	Vapor pressure	10 mmHg at 245°F
Flash point	261°F	Vapor density	3.79
Specific gravity	1.34	Ionization potential
Lower explosive limit (LEL)	1.4%	Upper explosive limit (UEL)	NA
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.)	0571
Sampling group
Sampler/Sampling media	OSHA versatile sampler (OVS-7) - 13 mm XAD-7 tube (270/140 mg) with GFF enclosed (no longer available) [SKC 226-57]
Sampling time^*
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2014 (partially validated)
Notes	SKC recommends the 200/100 mg variant with the same media [SKC 226-57]
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
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		REL-TWA	5 ppm (20 mg/m³)	TLV-TWA	5 ppm [1985]	PEL-TWA	5 ppm (20 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2B, TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Catechol

NIOSH: Pocket Guide to Chemical Hazards - Catechol

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Catechol. See annual publication for most recent information.

Last Updated Date : 12/21/2020

MANGANESE CYCLOPENTADIENYL TRICARBONYL (as Mn)†

Chemical Identification
CAS #	12079-65-1
Formula	C₅H₅Mn(CO)₃
Synonyms	cyclopentadienylmanganese tricarbonyl; cyclopentadienyl tricarbonyl manganese; MCT

Physical Properties
Physical description	Yellow, crystalline solid with a characteristic odor.
Boiling point	sublimes	Molecular weight	204.1
Freezing point/melting point	167°F (sublimes)	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

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes	See MANGANESE, COMPOUNDS & FUME (as Mn)
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
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		REL-TWA	0.1 mg/m³	TLV-TWA	0.1 mg/m³ [1992]	PEL-TWA	0.1 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C	5 mg/m³	REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Manganese cyclopentadienyl tricarbonyl

NIOSH: Pocket Guide to Chemical Hazards - Manganese cyclopentadienyl tricarbonyl (as Mn)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Manganese cyclopentadienyl tricarbonyl [12079-65-1], as Mn. See annual publication for most recent information.

Last Updated Date : 01/04/2021

TUNGSTEN CARBIDE (CONTAINING >2% Co, as Co)†

Chemical Identification
CAS #	12070-12-1
Formula	WC/Co/Ti
Synonyms	cemented tungsten carbide; cemented WC; hard metal

Physical Properties
Physical description	A mixture of tungsten carbide, cobalt, and sometimes other metals & metal oxides or carbides.
Boiling point	10832°F	Molecular weight	195.86
Freezing point/melting point	4946-5126°F	Vapor pressure	4 mmHg
Flash point		Vapor density
Specific gravity	15.6 at 64°F	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.)	0720
Sampling group
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
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
Method reference	OSHA ID-213 (fully validated)
Notes	Air sampling of cemented tungsten carbides and tungsten alloy matrices may contain cobalt; these should be sent to the lab to be analyzed for cobalt and tungsten by ID-213.
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
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	0.1 mg Co/m³	REL-TWA	0.05 mg Co/m³	TLV-TWA	0.005 mg/m³ (thoracic particulate matter) [2015]	PEL-TWA	0.02 mg Co/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: As Co. See 29 CFR 1910.1000 Table Z-1.		Notes: See Appendix C, Supplementary Exposure Limits, Tungsten Carbide (Cemented).		Notes: respiratory sensitization (RSEN)		Notes: as Co
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2B; TLV-A2		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Tungsten carbide

NIOSH: Pocket Guide to Chemical Hazards - Tungsten carbide (cemented)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Hard metals containing Cobalt [7440-48-4] and Tungsten carbide [12070-12-1], as Co. See annual publication for most recent information.

Last Updated Date : 01/14/2021

ASBESTOS - CHRYSOTILE‡

Chemical Identification
CAS #	12001-29-5
Formula	Hydrated mineral silicates
Synonyms	white asbestos

Physical Properties
Physical description	White or greenish fibrous, odorless solid
Boiling point	decomposes	Molecular weight	varies
Freezing point/melting point	1112°F (decomposes)	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.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes	See ASBESTOS, ALL FORMS
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
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		REL-TWA		TLV-TWA	0.1 f/cc	PEL-TWA
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: TWA = 0.1 f/cc, STEL = 1 f/cc [30 MINUTES]. See 29 CFR 1910.1001, Asbestos.		Notes: TWA = 0.1 f/cc AS DETERMINED BY A 400-LITER AIR SAMPLE COLLECTED OVER 100 MINUTES (NIOSH ANALYTICAL		Notes: [F] Respirable fibers: length >5µm; aspect ratio ≥3:1, as determined by the membrane filter method at 400-450X magnification (4-mm objective), using phase-contrast illumination.		Notes: See California Code of Regulations, Title 8, Section 5208. Asbestos.
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: EPA-A, IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A1		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Asbestos, white

NIOSH: Pocket Guide to Chemical Hazards - Asbestos

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Asbestos [1332-21-4], all forms. See annual publication for most recent information.

Last Updated Date : 12/17/2020

ASBESTOS - CROCIDOLITE‡

Chemical Identification
CAS #	12001-28-4
Formula	Hydrated mineral silicates
Synonyms	blue asbestos

Physical Properties
Physical description	Blue fibrous, odorless solid.
Boiling point	decomposes	Molecular weight	varies
Freezing point/melting point	1112°F (decomposes)	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.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes	See ASBESTOS, ALL FORMS
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
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		REL-TWA		TLV-TWA	0.1 f/cc	PEL-TWA
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: TWA = 0.1 f/cc, STEL = 1 f/cc [30 MINUTES]. See 29 CFR 1910.1001, Asbestos.		Notes: TWA = 0.1 f/cc AS DETERMINED BY A 400-LITER AIR SAMPLE COLLECTED OVER 100 MINUTES (NIOSH ANALYTICAL		Notes: [F] Respirable fibers: length >5µm; aspect ratio ≥3:1, as determined by the membrane filter method at 400-450X magnification (4-mm objective), using phase-contrast illumination.		Notes: See California Code of Regulations, Title 8, Section 5208. Asbestos.
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: EPA-A, IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A1		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Asbestos, [blue]

NIOSH: Pocket Guide to Chemical Hazards - Asbestos

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Asbestos [1332-21-4], all forms. See annual publication for most recent information.

Last Updated Date : 12/17/2020

MICA†

Chemical Identification
CAS #	12001-26-2
Formula	NA
Synonyms	biotite; lepidolite; margarite; muscovite; phlogopite; roscoelite

Physical Properties
Physical description	Colorless, odorless flakes or sheets of hydrous silicates.
Boiling point		Molecular weight	797 (approx)
Freezing point/melting point		Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	2.6-3.2	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.)	9075 (resp); request using analyte code 9130
Sampling group
Sampler/Sampling media	Tared low-ash 37 mm PVC filter, 5 microns, preceded by 10 mm nylon Dorr-Oliver cyclone for respirable samples. [SLTC108]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	816 L
Sampling flow rate (TWA)^*	1.7 L/min ±5%
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	Gravimetric
Method reference	OSHA PV2121 (partially validated)
Notes	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

^* 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
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	20 mppcf (respirable)	REL-TWA	3 mg/m³ (respirable)	TLV-TWA	3 mg/m³ (respirable particulate matter) [1962]	PEL-TWA	3 mg/m³ (respirable dust)
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-3, Mineral Dusts.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	1500 mg/m³
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Mica (containing less than 1% quartz)

NIOSH: Pocket Guide to Chemical Hazards - Mica (containing less than 1% quartz)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Mica. See annual publication for most recent information.

Last Updated Date : 01/05/2021

CYPERMETHRIN

Chemical Identification
CAS #	52315-07-8
Formula	C₂₂H₁₉Cl₂NO₃
Synonyms	3-(2,2-dichloroethenyl)-2,2-di-methylcyclopropane carboxylic acid cyano-(3-phenoxyphenyl)-methyl ether; Cypercopal; Cyperkill; Cypermar

Physical Properties
Physical description	Yellow viscous liquid or semi-solid. Pure isomers are colorless crystals.
Boiling point		Molecular weight	416.3
Freezing point/melting point	158°F	Vapor pressure	1.7x10-9 mmHg
Flash point		Vapor density	1.25
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.)	C628
Sampling group
Sampler/Sampling media	OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time^*	60 min
Sampling volume (TWA)^*	60 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-ECD
Method reference	OSHA PV2063 (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.

Bulk/Wipe Method
Wipe Sampler/Sampling media
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		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: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not Listed

NIOSH: Pocket Guide to Chemical Hazards - Not Listed

Literature References

Last Updated Date : 12/22/2020

O-TOLIDINE

Chemical Identification
CAS #	119-93-7
Formula	C₁₄H₁₆N₂
Synonyms	4,4'-diamino-3,3'-dimethylbiphenyl; diaminoditolyl; 3,3'-dimethylbenzidine; 3,3'-dimethyl-4,4'-diphenyldiamine; 3,3'-tolidine

Physical Properties
Physical description	White to reddish crystals or powder.
Boiling point	392°F	Molecular weight	212.3
Freezing point/melting point	264°F	Vapor pressure	1x10-6 mmHg (est)
Flash point	471°F	Vapor density
Specific gravity	1	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.)	2450
Sampling group
Sampler/Sampling media	2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time^*	100 min
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*	15 L
Sampling flow rate (STEL/Peak/C)^*	1 L/min
Analytical method instruments	GC-ECD
Method reference	OSHA 71 (fully validated)
Notes	Within ten hours after sampling, transfer filter to glass vial containing 2 mL deionized water.
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
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		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	0.02 mg/m³ [60 minutes]	TLV-C		PEL-C
Skin notation	NA	Skin notation	Y	Skin notation	Y	Skin notation	NA
Notes: Not established		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes: TLV value not established [1992]		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: NIOSH-Ca, TLV-A3, IARC-2B, NTP-R		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 3,3'-Dimethylbenzidine

NIOSH: Pocket Guide to Chemical Hazards - o-Tolidine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - o-Tolidine. See annual publication for most recent information.

Last Updated Date : 01/07/2021

2-METHYLCYCLOPENTADIENYL MANGANESE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,2,4-TRICHLOROBENZENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CATECHOL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

MANGANESE CYCLOPENTADIENYL TRICARBONYL (as Mn)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TUNGSTEN CARBIDE (CONTAINING >2% Co, as Co)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ASBESTOS - CHRYSOTILE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ASBESTOS - CROCIDOLITE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

MICA†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CYPERMETHRIN

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

O-TOLIDINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References