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1,6-HEXANEDIAMINE

Chemical Identification
CAS #	124-09-4
Formula	C₆H₁₆N₂
Synonyms	hexamthylenediamine

Physical Properties
Physical description	Colorless crystalline solid or clear liquid.
Boiling point	401°F	Molecular weight	116.21
Freezing point/melting point	108°F	Vapor pressure	1.1 mmHg at 122°F, 3 mmHg at 140°F
Flash point	178°F	Vapor density	4.01
Specific gravity	0.799 at 140°F (70% sol), 0.933 at 20°C	Ionization potential
Lower explosive limit (LEL)	0.7%	Upper explosive limit (UEL)	6.3%
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	0.5 ppm [1990]	PEL-TWA	0.5 ppm (2.3 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: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Hexamethylenediamine, solid

NIOSH: Pocket Guide to Chemical Hazards - Hexamethylenediamine, solid

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,6-Hexanediamine. See annual publication for most recent information.

Last Updated Date : 12/14/2020

ADIPIC ACID

Chemical Identification
CAS #	124-04-9
Formula	C₆H₁₀O₄
Synonyms	acifloctin; acinetten; adilatetten; adipinic acid; 1,4-butanedicarboxylic acid; 1,6-hexanedioic acid

Physical Properties
Physical description	White crystalline solid
Boiling point		Molecular weight	146.14
Freezing point/melting point	304°F	Vapor pressure
Flash point	376°F	Vapor density
Specific gravity	1.36	Ionization potential
Lower explosive limit (LEL)	15 mg/l (dust)	Upper explosive limit (UEL)	10-15 mg/l (dust)
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.)
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	5 mg/m³ [1990]	PEL-TWA	5 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:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Adipic acid

NIOSH: Pocket Guide to Chemical Hazards - Adipic acid

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Adipic acid. See annual publication for most recent information.
Kennedy, G.L., Jr. Toxicity of adipic acid. Drug Chem. Toxicol. 25(2): 191-202, 2002.

Last Updated Date : 12/15/2020

ISOAMYL ACETATE (ISOPENTYL ACETATE)†

Chemical Identification
CAS #	123-92-2
Formula	C₇H₁₄O₂
Synonyms	banana oil; Isopentyl acetate; 3-methyl-1-butanol acetate; 3-methylbutyl ester of acetic acid; 3-methylbutyl ethanoate

Physical Properties
Physical description	Colorless liquid with a banana-like odor.
Boiling point	288°F	Molecular weight	130.018
Freezing point/melting point	-109°F	Vapor pressure	4 mmHg
Flash point	77°F	Vapor density	4.49
Specific gravity	0.876 at 59°F	Ionization potential
Lower explosive limit (LEL)	1% at 212°F	Upper explosive limit (UEL)	7.5%
NFPA health rating	1	NFPA fire rating	3
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.)	1530
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	240 min
Sampling volume (TWA)^*	24 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*	1.5 L
Sampling flow rate (STEL/Peak/C)^*	0.1 L/min
Analytical method instruments	GC-FID
Method reference	OSHA PV2142 (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	Detector tube
Model/Type	Gastec 147
Sampling information (see manufacturer instructions)	4 min per pump stroke, 2-200 ppm range, uncertainty 15% for 10-50 ppm, 10% for 50-200 ppm

**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	100 ppm (525 mg/m³)	REL-TWA	100 ppm (525 mg/m³)	TLV-TWA	50 ppm [1997]	PEL-TWA	50 ppm (266 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL	100 ppm [1997]	PEL-STEL	100 ppm (532 mg/m³)
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:		Notes:		Notes: as pentyl acetate
Health factors: See NIH-NLM PubChem.		IDLH	1000 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Iso-amyl acetate

NIOSH: Pocket Guide to Chemical Hazards - Isoamyl acetate

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Pentyl acetate, all isomers. See annual publication for most recent information.
Bensafi, M., Rouby, C., Farget, V., Bertrand, B., Vigouroux, M. and Holley, A.: Autonomic nervous system responses to odours: the role of pleasantness and arousal. Chem. Senses 27(8): 703-709, 2002.
Grossmann, N., Brin, I., Aizenbud, D., Sichel, J.Y., Gross-Isseroff, R. and Steiner, J.: Nasal aikrflow and olfactory function after the repair of cleft palate (with and without cleft lip). Oral. Surg. Oral Med. Oral Pathol. Oral Radiol. Endod. 100(5): 539-544, 2005.
Pohanish, R.P. (editor): Isoamyl Acetate. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1319-1320.

Last Updated Date : 12/31/2020

DIOXANE (DIETHYLENE DIOXIDE) (1,4-DIOXANE)†

Chemical Identification
CAS #	123-91-1
Formula	C₄H₈O₂
Synonyms	diethylene ether; dioxan; p-dioxane; 1,4-diethyleneoxide

Physical Properties
Physical description	Colorless liquid or solid (below 53°F) with a mild, ether-like odor.
Boiling point	214°F	Molecular weight	88.1
Freezing point/melting point	53°F	Vapor pressure	29 mmHg
Flash point	55°F	Vapor density	3.03
Specific gravity	1.03	Ionization potential	9.13 eV
Lower explosive limit (LEL)	2%	Upper explosive limit (UEL)	22%
NFPA health rating	2	NFPA fire rating	3
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1010
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	0.5-15 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-FID
Method reference	NIOSH 1602 (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	Wipe with charcoal pad, seal in glass vial for shipment. [3M 3500]
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	100 ppm (360 mg/m³)	REL-TWA		TLV-TWA	20 ppm [1996]	PEL-TWA	0.28 ppm (1 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	1 ppm (3.6 mg/m³) [30 minutes]	TLV-C		PEL-C
Skin notation	Y	Skin notation	N	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	500 ppm
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, TLV-A3, EPA-L		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dioxane

NIOSH: Pocket Guide to Chemical Hazards - Dioxane

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,4-Dioxane. See annual publication for most recent information.
California Department of Health Services-Drinking Water Program: Information for Public Drinking Water Systems.
Nannelli, A., De Rubertis, A., Longo, V. and Gervasi, P.G.: Effects of dioxane on cytochrome P450 enzymes in liver, kidney, lung and nasal mucosa of rat. Arch. Toxicol. 79(2): 74-82, 2005.
No Author: 1,4-Dioxane. Report on Carcinogens (latest edition); U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program.
Pohanish, R.P. (editor): Dioxane. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 965-967.
Stickney, J.A., et al.: An updated evaluation of the carcinogenic potential of 1,4-dioxane. Regul. Toxicol. Pharmacol. 38(2): 183-195, 2003.

Last Updated Date : 12/28/2020

N-BUTYL ACETATE†

Chemical Identification
CAS #	123-86-4
Formula	C₆H₁₂O₂
Synonyms	butyl acetate; n-butyl ester of acetic acid; butyl ethanoate

Physical Properties
Physical description	Colorless liquid with a fruity odor.
Boiling point	258°F	Molecular weight	116.2
Freezing point/melting point	-107°F	Vapor pressure	10 mmHg
Flash point	72°F	Vapor density	4
Specific gravity	0.88	Ionization potential	10.00 eV
Lower explosive limit (LEL)	1.7%	Upper explosive limit (UEL)	7.6%
NFPA health rating	2	NFPA fire rating	3
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.)	0440	0440
Sampling group	OVSG-1
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]	SKC 575-002 Passive Sampler [SKC 575-002]
Sampling time^*	240 min	240 min TWA; 15 min STEL
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID	GC-FID
Method reference	OSHA 5000 (fully validated)	OSHA 1009 (fully validated)
Notes		To obtain sampling and analytical error similar to that available with active sampling, knowledge of the atmospheric pressure and temperature are required, and these should be obtained using NIST-traceable devices. If that is not possible, temperature is assumed to be 22.2 °C, and the atmospheric pressure is estimated based on the elevation of the sampling location. When estimates are used in place of traceable measurements the sampling and analytical error associated with passive sampling is substantially increased, and this makes it more difficult to demonstrate overexposures after considering the 95% lower confidence limit.
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	150 ppm (710 mg/m³)	REL-TWA	150 ppm (710 mg/m³)	TLV-TWA		PEL-TWA	150 ppm (710 mg/m³)
PEL-STEL		REL-STEL	200 ppm (950 mg/m³)	TLV-STEL		PEL-STEL	200 ppm (950 mg/m³)
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	NA
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: Visit the ACGIH TLV site for specific data		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	1700 ppm
Carcinogenic classifications: Not listed		Notes: 10% of LEL
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 5 ppm/200 ppm/3000 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Butyl acetate

NIOSH: Pocket Guide to Chemical Hazards - n-Butyl acetate

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - n-Butyl Acetate. See annual publication for most recent information.
NIOSH: Occupational Safety and Health Guideline for n-Butyl Acetate. 1992.

Last Updated Date : 04/05/2024

Group Sampling Information
Sampling Media	Sampling Time (If there are exceptions they will be in Notes)	TWA Sampling Volume (If there are exceptions they will be in Notes)	TWA Flow Rate (If there are exceptions they will be in Notes)
CSC Tube (100/50 mg sections, 20/40 mesh), [SKC 226-01]	240 min	12 L	0.05 L/min

Analytes Sampling Information
Analytes	IMIS Code	Wipe Sampling
Isobutyl Acetate	1534	No
n-Butyl Acetate	0440	No
sec-Butyl Acetate	0441	No
tert-Butyl Acetate	0442	No
Toluene**	2460	No
Ethyl Benzene	1080	No
Perchloroethylene (Tetrachloroethylene)**	2020	No
Trichloroethylene**	2490	No
Xylene	2590	No
Trimethylbenzene	2505	No
Benzene***	0320	No
Ethyl Acetate****	1040	No
n-Propyl Acetate‡	2180	No
Pentane‡‡	1990	No
Cyclohexane‡‡‡	0810	No
Heptane*	1371	No
n-Hexane‡‡‡‡	1380	No
Nonane*	N807	No
Octane*	1957	No

Notes

Request any (up to three (3)) of these analytes together.

Alternatively request IMIS Code Q115 and SLTC will report any significant amounts of these analytes.

Results for unrequested analytes in this group will be reported if significant amount are found.

Toluene, sec-Butyl Acetate, Benzene and Isobutyl Alcohol all have/are known interferences. Please indicate on the 91A which of these compounds are known to be present.

There is no need to contact SLTC before sampling.

*80 min (4L)

**Peak sampling 1 min (0.05 L) and Ceiling sampling 5 min (0.25 L)

***STEL sampling 15 min (0.75 L)

****120 min (6 L)

‡200 min (10 L)

‡‡45 min (2.25 L)

‡‡‡190 min (9.5 L)

‡‡‡‡98 min (4.9 L)

ISOAMYL ALCOHOL†

Chemical Identification
CAS #	123-51-3
Formula	C₅H₁₂O
Synonyms	fermentation amyl alcohol; fusel oil; isobutyl carbinol; isopentyl alcohol; 3-methyl-1-butanol; primary isoamyl alcohol

Physical Properties
Physical description	Colorless liquid with a disagreeable odor.
Boiling point	270°F	Molecular weight	88.15
Freezing point/melting point	-179°F	Vapor pressure	28 mmHg
Flash point	114°F	Vapor density
Specific gravity	0.81 at 68°F	Ionization potential
Lower explosive limit (LEL)	1.2% at 212°F	Upper explosive limit (UEL)	9% at 212°F
NFPA health rating	1	NFPA fire rating	2
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.)	1532
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	1-10 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-FID
Method reference	NIOSH 1402 (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	100 ppm (360 mg/m³)	REL-TWA	100 ppm (360 mg/m³)	TLV-TWA	100 ppm [1990]	PEL-TWA	100 ppm (360 mg/m³)
PEL-STEL		REL-STEL	125 ppm (450 mg/m³)	TLV-STEL	125 ppm [1990]	PEL-STEL	125 ppm (450 mg/m³)
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:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	500 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Isoamyl alcohol

NIOSH: Pocket Guide to Chemical Hazards - Isoamyl alcohol (primary)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Isoamyl alcohol. See annual publication for most recent information.
International Chemical Safety Cards (WHO/IPCS/ILO): Isoamyl alcohol.
Klimisch, H.-J. and Hellwig, J.: Studies on the prenatal toxicity of 3-methyl-1-butanol and 2-methyl-1-propanol in rats and rabbits following inhalation exposure. Fundam. Appl. Toxicol. 27(1): 77-89, 1995.
Pohanish, R.P. (editor): Isoamyl Alcohol. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1320-1322.

Last Updated Date : 12/31/2020

DIACETONE ALCOHOL (4-HYDROXY-4-METHYL-2-PENTANONE)†

Chemical Identification
CAS #	123-42-2
Formula	C₆H₁₂O₂
Synonyms	diacetone; 4-hydroxy-4-methyl-2-pentanone; 2-methyl-2-pentanol-4-one

Physical Properties
Physical description	Colorless liquid with a faint, minty odor.
Boiling point	334°F	Molecular weight	116.2
Freezing point/melting point	-47°F	Vapor pressure	1 mmHg
Flash point	125°F	Vapor density
Specific gravity	0.94	Ionization potential
Lower explosive limit (LEL)	1.8%	Upper explosive limit (UEL)	6.9%
NFPA health rating	1	NFPA fire rating	2
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.)	0860
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	1-10 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-FID
Method reference	NIOSH 1402 (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	50 ppm (240 mg/m³)	REL-TWA	50 ppm (240 mg/m³)	TLV-TWA	50 ppm [1979]	PEL-TWA	50 ppm (240 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: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	1800 ppm
Carcinogenic classifications: Not listed		Notes: 10% of LEL
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diacetone alcohol

NIOSH: Pocket Guide to Chemical Hazards - Diacetone alcohol

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Diacetone alcohol. See annual publication for most recent information.
Pohanish, R.P. (editor): Diacetone Alcohol. Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 758-759.

Last Updated Date : 12/22/2020

HYDROQUINONE (DIHYDROXYBENZENE)†

Chemical Identification
CAS #	123-31-9
Formula	C₆H₆O₂
Synonyms	p-benzenediol; 1,4-benzenediol; dihydroxybenzene; 1,4-dihydroxybenzene; quinol

Physical Properties
Physical description	Light-tan, light-gray, or colorless crystals.
Boiling point	545°F	Molecular weight	110.11
Freezing point/melting point	338°F	Vapor pressure	4 mmHg at 302°F
Flash point	329°F	Vapor density	3.81
Specific gravity	1.332 at 59°F	Ionization potential	7.95 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
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.)	1490
Sampling group
Sampler/Sampling media	XAD-7 (80/40 mg sections, 20/60 mesh) coated with 10% phosphoric acid [SKC 226-98]
Sampling time^*	100 min
Sampling volume (TWA)^*	20 L
Sampling flow rate (TWA)^*	0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC
Method reference	OSHA PV2094 (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	2 mg/m³	REL-TWA		TLV-TWA	1 mg/m³ [2007]	PEL-TWA	2 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	2 mg/m³ [15 minutes]	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:		Notes: dermal sensitizer (DSEN)		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	50 mg/m³
Carcinogenic classifications: IARC-3, TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Hydroquinone

NIOSH: Pocket Guide to Chemical Hazards - Hydroquinone

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Hydroquinone. See annual publication for most recent information.
International Chemical Safety Cards (WHO/IPCS/ILO): Hydroquinone.
DeCaprio, A.P.: The toxicology of hydroquinone - relevance to occupational and environmental exposure. Crit. Rev. Toxicol. 29(3): 283-330, 1999.
English, J.C. and Deisinger, P.J.: Metabolism and disposition of hydroquinone in Fischer 344 rats after oral or dermal administration. Food Chem. Toxicol. 43(3): 483-493, 2005.
Halder, R.M. and Richards, G.M.: Topical agents used in the management of hyperpigmentation. Skin Therapy Lett. 9(6): 1-3, 2004.
Pohanish, R.P. (editor): Hydroquinone. Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1293-1295.

Last Updated Date : 12/31/2020

DIPROPYL KETONE

Chemical Identification
CAS #	123-19-3
Formula	C₇H₁₄O
Synonyms	butyrone; DPK; 4-heptanone; Heptan-4-one; propyl ketone

Physical Properties
Physical description	Colorless liquid with a pleasant odor.
Boiling point	291°F	Molecular weight	114.2
Freezing point/melting point	-27°F	Vapor pressure	5 mmHg
Flash point	120°F	Vapor density
Specific gravity	0.82	Ionization potential	9.10 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	1	NFPA fire rating	2
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.)
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	50 ppm (235 mg/m³)	TLV-TWA	50 ppm [1978]	PEL-TWA	50 ppm (235 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:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dipropyl ketone

NIOSH: Pocket Guide to Chemical Hazards - Dipropyl ketone

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Dipropyl ketone. See annual publication for most recent information.
Pohanish, R.P. (editor): Dipropyl Ketone. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 983-985.
Wahl, H.G., Hong, Q., Hildenbrand, S., Risler, T., Luft, D. and Liebich, H.: 4-Heptanone is a metabolite of the plasticizer di(2-ethylhexyl) phthalate (DEHP) in haemodialysis patients. Nephrol. Dial. Transplant. 19(10): 2576-2583, 2004.

Last Updated Date : 12/28/2020

PHENYL GLYCIDYL ETHER (PGE)†

Chemical Identification
CAS #	122-60-1
Formula	C₉H₁₀O₂
Synonyms	1,2-epoxy-3-phenoxy propane; glycidyl phenyl ether; PGE; phenyl 2,3-epoxypropyl ether

Physical Properties
Physical description	Colorless liquid.
Boiling point	473°F	Molecular weight	150.19
Freezing point/melting point	38°F	Vapor pressure	0.01 mmHg
Flash point	248°F	Vapor density	4.37
Specific gravity	1.11	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.)	2057
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	80-150 L
Sampling flow rate (TWA)^*	0.01-1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 1619 (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	10 ppm (60 mg/m³)	REL-TWA		TLV-TWA	0.1 ppm [1992]	PEL-TWA	0.1 ppm (0.6 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C	1 ppm (6 mg/m³) [15 minutes]	TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes: dermal sensitizer (DSEN)		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	100 ppm
Carcinogenic classifications: IARC-2B, NIOSH-Ca, TLV-A3		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Phenyl glycidyl ether

NIOSH: Pocket Guide to Chemical Hazards - Phenyl glycidyl ether

Literature References

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

Last Updated Date : 01/08/2021

1,6-HEXANEDIAMINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ADIPIC ACID

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ISOAMYL ACETATE (ISOPENTYL ACETATE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIOXANE (DIETHYLENE DIOXIDE) (1,4-DIOXANE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

N-BUTYL ACETATE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ISOAMYL ALCOHOL†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIACETONE ALCOHOL (4-HYDROXY-4-METHYL-2-PENTANONE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

HYDROQUINONE (DIHYDROXYBENZENE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIPROPYL KETONE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

PHENYL GLYCIDYL ETHER (PGE)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References