Sampling and Analysis | OSHA.gov | Occupational Safety and Health Administration

Display this Topic in the Publications Hot Topics slick slider

Off

DIMETHYLAMINOPROPYLNITRILE

Chemical Identification
CAS #	1738-25-6
Formula	(CH₃)₂NCH₂CH₂CN
Synonyms	3-(dimethylamino)propionitrile; N,N-dimethylamino-3-propionitrile [Note: a component (95%) of NAIX Catalyst ESN, along with bis (2-(dimethylamino)ethyl) ether (5%)]

Physical Properties
Physical description	Colorless liquid.
Boiling point	342°F	Molecular weight	98.2
Freezing point/melting point	-48°F	Vapor pressure	10 mmHg at 135°F
Flash point	147°F	Vapor density
Specific gravity	0.86 at 86°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.)
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		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	N	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: MINIMIZE EXPOSURE TO NIAX(R) CATALYST ESN, COMPONENTS AND FORMULATIONS CONTAINING EITHER COMPONENT. See Appendix C, Supplementary Exposure Limits.		Notes: Not established		Notes: Not established
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 - Dimethylaminopropionitrile

NIOSH: Pocket Guide to Chemical Hazards - Dimethylaminopropionitrile

Literature References

Last Updated Date : 12/28/2020

COBALT HYDROCARBONYL

Chemical Identification
CAS #	16842-03-8
Formula	HCo(CO)₄
Synonyms	hydrocobalt tetracarbonyl; tetracarbonylhydridocobalt; tetracarbonylhydrocobalt

Physical Properties
Physical description	Gas with an offensive odor.
Boiling point		Molecular weight	172
Freezing point/melting point	-15°F	Vapor pressure	>1 atm
Flash point		Vapor density	5.93
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
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 [1980]	PEL-TWA	0.1 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
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: IARC-2B		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: --/0.9 mg/m³/3 mg/m³

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Cobalt hydrocarbonyl

NIOSH: Pocket Guide to Chemical Hazards - Cobalt hydrocarbonyl (as Co)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Cobalt hydrocarbonyl [16842-03-8], as Co. See annual publication for most recent information.

Last Updated Date : 12/21/2020

METHOMYL

Chemical Identification
CAS #	16752-77-5
Formula	C₅H₁₀N₂O₂S
Synonyms	Lannate; methyl N-((methylamino)carbonyl)oxy)ethanimidothioate; S-methyl-N-(methylcarbamoyloxy)thioacetimidate

Physical Properties
Physical description	White, crystalline solid with a slight, sulfur-like odor.
Boiling point		Molecular weight	162.2
Freezing point/melting point	172°F	Vapor pressure	0.00005 mmHg at 77°F
Flash point		Vapor density
Specific gravity	1.29 at 75°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.)	1644
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^*
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	HPLC
Method reference	OSHA PV2114 (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	Wipe with GFF (37 mm), Type A/E [AP4003705]
Bulk Method	Limit the amount of bulk submitted to 1 g or 1 mL.

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	2.5 mg/m³	TLV-TWA	0.2 mg/m³ (inhalable fraction and vapor) [2013]	PEL-TWA	2.5 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	Y	Skin notation	Y
Notes: Not established		Notes:		Notes: BEI®		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Methomyl

NIOSH: Pocket Guide to Chemical Hazards - Methomyl

Literature References

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

Last Updated Date : 01/28/2021

TERT-BUTYL METHYL ETHER (METHYL TERT-BUTYL ETHER)

Chemical Identification
CAS #	1634-04-4
Formula	C₅H₁₂O
Synonyms	methyl-t-butyl Ether; methoxy-2-methyl propane; MTBE

Physical Properties
Physical description	A colorless liquid with a distinctive anesthetic-like odor.
Boiling point	131.4°F	Molecular weight	88.17
Freezing point/melting point	-164.2°F	Vapor pressure
Flash point	-14°F	Vapor density
Specific gravity	0.7405	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	CMS Chip
Model/Type	MTBE, 10-200 ppm range
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	50 ppm [1999]	PEL-TWA	40 ppm (144 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	N	Skin notation	N
Notes: Not established		Notes: Not established		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-3, TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 5 ppm/1000 ppm/5000 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Methyl tert-butyl ether

NIOSH: Pocket Guide to Chemical Hazards - Methyl tert-butyl ether

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Methyl tert-butyl ether. See annual publication for most recent information.
(absorption; metabolism) Draper, A.J., Madan, A. and Parkinson, A.: Inhibition of coumarin 7-hydroxylase activity in human liver microsomes. Arch. Biolchem. Biophys. 341(1): 47-61, 1997.
Prah, J.D., Blount, B., Cardinali, F.L., Ashley, D.L., Leavens, T. and Case, M.W.: The development and testing of a dermal exposure system for pharmacokinetic studies of administered and ambient water contaminants. J. Pharmacol. Toxicol. Methods 47(3): 189-195, 2002.
(clinical use) Hellstern, A., et al.: Dissolution of gallbladder stones with methyl tert-butyl ether and stone recurrence: a European survey. Dig. Dis. Sci. 43(5): 911-920, 1998.
(general reviews) Borak, J., Pastides, H., Van Ert, M., Russi, M. and Herzstein J.: Exposure to MTBE and acute human health effects: a critical literature review. Human and Ecological Risk Assessment 4(1): 177-200, 1998.
No Authors. Methyl tert-butyl ether . IARC Monogr. Eval. Carcinog. Risks Hum. 73: 339-383, 1999.

Last Updated Date : 01/12/2021

ETHYLIDENE NORBORNENE

Chemical Identification
CAS #	16219-75-3
Formula	C₉H₁₂
Synonyms	ENB; 5-ethylidenebicyclo(2.2.1)-hept-2-ene; 5-ethylidene-2-norbornene [Note: Due to its reactivity, ENB may be stabilized with tert-butyl catechol.]

Physical Properties
Physical description	Colorless to white liquid with a turpentine-like odor.
Boiling point	298°F	Molecular weight	120.2
Freezing point/melting point	-112°F	Vapor pressure	4 mmHg
Flash point	79°F	Vapor density
Specific gravity	0.90	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		TLV-TWA	2 ppm [2013]	PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL	4 ppm [2013]	PEL-STEL
PEL-C		REL-C	5 ppm (25 mg/m³)	TLV-C		PEL-C	5 ppm (25 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: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 0.2 ppm/100 ppm/500 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Ethylidene norbornene

NIOSH: Pocket Guide to Chemical Hazards - Ethylidene norbornene

Literature References

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

Last Updated Date : 01/28/2021

CALCIUM CYANAMIDE

Chemical Identification
CAS #	156-62-7
Formula	CaCN₂
Synonyms	calcium carbimide; cyanamide; lime nitrogen; nitrogen lime

Physical Properties
Physical description	Colorless, gray, or black crystals or powder.
Boiling point	sublimes	Molecular weight	80.1
Freezing point/melting point	2372°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	2.29	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating	3
NFPA reactivity rating	1	NFPA special instruction	W: Reacts violently or explosively with water.
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0510 (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)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	Gravimetric
Method reference	OSHA PV2121 (partially validated)
Notes	Samples collected for this compound are first analyzed gravimetrically. If the gravimetric result of a sample yields a concentration below the permissible exposure limit (PEL), the SLTC will report the calculated air concentration for the requested compound solely from the gravimetric result, qualified as less than or equal to the gravimetric result; no further work on the sample will be performed. If the gravimetric result indicates an air concentration greater than the PEL, the sample will proceed for elemental analysis. Results will be reported from the elemental analysis for the element only; the stated identity of the actual sample contents is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. An elemental result provided may be converted to the desired compound by multiplying the result by the appropriate stoichiometric factor. A 91B report specific to the compound (including the stoichiometric conversion) may by be provided upon request by contacting the laboratory. The stoichiometric factor for calcium cyanamide from calcium is 1.999.
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.

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	0.5 mg/m³	TLV-TWA	0.5 mg/m³ [1973]	PEL-TWA	0.5 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	NA
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Calcium cyanamide, with more than 0.1% Calcium carbide

NIOSH: Pocket Guide to Chemical Hazards - Calcium cyanamide

Literature References

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

Last Updated Date : 12/18/2020

CARBOFURAN

Chemical Identification
CAS #	1563-66-2
Formula	C₁₂H₁₅NO₃
Synonyms	2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate; Furacarb; Furadan

Physical Properties
Physical description	Odorless, white or grayish, crystalline solid.
Boiling point		Molecular weight	221.3
Freezing point/melting point	304°F	Vapor pressure	(77°F): 0.000003 mmHg
Flash point		Vapor density
Specific gravity	1.18	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.)	0526
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^*
Sampling volume (TWA)^*	480 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC-UV
Method reference	OSHA PV2127 (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	Wipe with Whatman 41. [WHA1441866]
Bulk Method	Limit the amount of bulk submitted to 1 g or 1 mL.

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 (inhalable fraction and vapor) [2001]	PEL-TWA	0.1 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes: BEI®		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Carbofuran

NIOSH: Pocket Guide to Chemical Hazards - Carbofuran

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Carbofuran. See annual publication for most recent information.
FMC Corporation: Furadan® 4 F Insecticide/Nematicide . Material Safety Data Sheet. April 2003.
Huang, J., Zhang, S., Ding, M., Zhou, A., Zhang, J., Zhang, J.: Acute effects of carbofuran in workers of two pesticide plants. Med. Lav. 89(Suppl. 2): S105-111, 1998.
Jeon, S.D., Lim, J.S. and Moon, C.K.: Carbofuran suppresses T-cell-mediated immune responses by the suppression of T-cell responsiveness, the differential inhibition of cytokine production, and NO production in macrophages. Toxicol. Lett. 119(2): 143-155, 2001.
Pohanish, R.P. (editor): Carbofuran. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 486-488.
Yang, P.Y., Tsao, T.C., Lin, J.L., Lyu, R.K. and Chiang, P.C.: Carbofuran-induced delayed neuropathy. J. Toxicol. Clin. Toxicol. 38(1): 43-46, 2000.

Last Updated Date : 12/21/2020

DI-N-OCTYL PHTHALATE

Chemical Identification
CAS #	117-84-0
Formula	C₂₄H₃₈O₄
Synonyms	di-n-octyl ester benzenedicarboxylic acid; DNOP; n-dioctyl phthalate

Physical Properties
Physical description	A clear liquid with a mild odor.
Boiling point	428°F	Molecular weight	390.62
Freezing point/melting point	-13°F	Vapor pressure	<0.2 mmHg at 302°F
Flash point	219°F	Vapor density
Specific gravity	0.98	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	1	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.)	1000
Sampling group
Sampler/Sampling media	OSHA versatile sampler (OVS-Tenax®) - 13 mm Tenax® tube (140/70 mg) with GFF enclosed [SKC 226-56]
Sampling time^*	240 min
Sampling volume (TWA)^*	240 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-FID
Method reference	OSHA 104 (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		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 - Di-n-octyl phthalate

NIOSH: Pocket Guide to Chemical Hazards - Di-n-octyl phthalate

Literature References

Last Updated Date : 12/28/2020

HALOTHANE

Chemical Identification
CAS #	151-67-7
Formula	F₃CCHBrCl
Synonyms	1-bromo-1-chloro-2,2,2-trifluoroethane; 2-bromo-2-chloro-1,1,1-trifluoroethane; 1,1,1-trifluoro-2-bromo-2-chloroethane; 2,2,2-trifluoro-1-bromo-1-chloroethane

Physical Properties
Physical description	Clear, colorless liquid with a sweetish, pleasant odor.
Boiling point	122.4°F	Molecular weight	197.4
Freezing point/melting point	-180°F	Vapor pressure	243 mmHg
Flash point		Vapor density	6.8
Specific gravity	1.87	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.)	0395
Sampling group
Sampler/Sampling media	Anasorb 747 (140/70 mg) [SKC 226-81A]
Sampling time^*	240 min
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*	0.75 L
Sampling flow rate (STEL/Peak/C)^*	0.05 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 103 (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	50 ppm [1979]	PEL-TWA	2 ppm (16 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	2 ppm (16.2 mg/m³) [60 minutes]	TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes: REL IS FOR EXPOSURE TO WASTE ANESTHETIC GASES		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-3, TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Halothane

NIOSH: Pocket Guide to Chemical Hazards - Halothane

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Halothane. See annual publication for most recent information.
Imbriani, M., Ghittori, S., Zadra, P. and Imberti, R.: Biological monitoring of the occupational exposure to halothane (fluothane) in operating room personnel. Am. J. Ind. Med. 20(1): 103-112, 1991.
Kenna, J.G., Satoh, H., Christ, D.D. and Pohl, L.R.: Metabolic basis for a drug hypersensitivity: antibodies in sera from patients with halothane hepatitis recognize liver neoantigens that contain the trifluoroacetyl group derived from halothane. J. Pharmacol. Exp. Ther. 245(3): 1103-1109, 1988.
Njoku, D.B., et al.: Autoantibodies associated with volatile anesthetic hepatitis found in the sera of a large cohort of pediatric anesthesiologists. Anesth. Analg. 94(2): 243-249, 2002.
Pohanish, R.P. (editor): Halothane. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1221-1223.
Sutherland, D.E. and Smith, W.A.: Chemical hepatitis associated with occupational exposure to halothane in a research laboratory. Vet. Hum. Toxicol. 34(5): 423-424, 1992.

Last Updated Date : 12/31/2020

ETHYLENEIMINE‡

Chemical Identification
CAS #	151-56-4
Formula	C₂H₅N
Synonyms	aminoethylene; azirane; aziridine; dimethyleneimine; dimethylenimine; ethylenimine (inhibited); ethylimine

Physical Properties
Physical description	Colorless liquid with an ammonia-like odor.
Boiling point	133°F	Molecular weight	43.1
Freezing point/melting point	-97°F	Vapor pressure	160 mmHg
Flash point	12°F	Vapor density	1.48
Specific gravity	0.83	Ionization potential	9.20 eV
Lower explosive limit (LEL)	3.3%	Upper explosive limit (UEL)	54.8%
NFPA health rating	4	NFPA fire rating	3
NFPA reactivity rating	3	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1175
Sampling group
Sampler/Sampling media	Bubbler (Folin's reagent)
Sampling time^*
Sampling volume (TWA)^*	1 L - 48 L
Sampling flow rate (TWA)^*	0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC-UV
Method reference	NIOSH 3514 (fully validated)
Notes	Ship at 5°C in dark
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	Detector tube
Model/Type	Gastec 180
Sampling information (see manufacturer instructions)	1-60 ppm range

**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	Ca	REL-TWA		TLV-TWA	0.05 ppm [2008]	PEL-TWA	0.5 ppm (1 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL	0.1 ppm [2008]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1003, 13 Carcinogens.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A.		Notes:		Notes: See California Code of Regulations, Title 8, Section 5209. Carcinogens.
Health factors: See NIH-NLM PubChem.		IDLH	100 ppm
Carcinogenic classifications: IARC-2B, NIOSH-Ca, OSHA-Ca, TLV-A3		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Ethyleneimine, stabilized

NIOSH: Pocket Guide to Chemical Hazards - Ethyleneimine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 2017.

Last Updated Date : 12/28/2020

DIMETHYLAMINOPROPYLNITRILE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

COBALT HYDROCARBONYL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

METHOMYL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TERT-BUTYL METHYL ETHER (METHYL TERT-BUTYL ETHER)

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ETHYLIDENE NORBORNENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CALCIUM CYANAMIDE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CARBOFURAN

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DI-N-OCTYL PHTHALATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

HALOTHANE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ETHYLENEIMINE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References