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LEAD CHROMATE‡

Chemical Identification
CAS #	7758-97-6
Formula	PbCrO₄
Synonyms	plumbous chromate; lead chromate (VI)

Physical Properties
Physical description	Yellow or orange-yellow crystals or powder.
Boiling point	482°F (decomposes)	Molecular weight	323.2
Freezing point/melting point	1551°F	Vapor pressure
Flash point		Vapor density
Specific gravity	6.12 at 59°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.)	0689 [CHROMIUM VI COMPOUNDS (HEXAVALENT CHROMIUM)] and/or 1591 [LEAD]
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 CHROMIUM VI COMPOUNDS (HEXAVALENT CHROMIUM) and/or LEAD
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	5 µg/m³ [2.5 µg/m³ Action Level] (as CrVI)	REL-TWA	0.0002 mg/m³ (8 hr TWA)	TLV-TWA	0.0002 mg/m³ (inhalable particulate matter) [2017]	PEL-TWA	0.005 mg/m³ (as Cr)
PEL-STEL		REL-STEL		TLV-STEL	0.0005 mg/m³ (inhalable particulate matter) [2017]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: OSHA's chromium (VI) standard applies to all occupational exposures to any chromium species with a valence of positive six, regardless of form or compound, including chromates and chromic acid. See 29 CFR 1910.1026, Chromium (VI). See LEAD for information regarding lead exposure.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens and Appendix C, Supplementary Exposure Limits.		Notes: dermal sensitization (DSEN), respiratory sensitization (RSEN), BEI®		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2A, NIOSH-Ca, NTP-K, TLV-A1, EPA-A		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Lead chromate

NIOSH: Pocket Guide to Chemical Hazards - Chromic acid and chromates

Literature References

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

Last Updated Date : 01/04/2021

ASBESTOS - TREMOLITE‡

Chemical Identification
CAS #	77536-68-6
Formula	Hydrated mineral silicate
Synonyms

Physical Properties
Physical description	White to gray, odorless solid. Brittle texture. Common contaminant in chrysotile and talc deposits.
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.)	9020
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		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: See ASBESTOS, ALL FORMS		Notes: See ASBESTOS, ALL FORMS
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

NIOSH: Pocket Guide to Chemical Hazards - Asbestos

Literature References

Last Updated Date : 12/17/2020

ASBESTOS - ACTINOLITE‡

Chemical Identification
CAS #	77536-66-4
Formula	Hydrated mineral silicate
Synonyms

Physical Properties
Physical description	Pale to dark green, odorless solid. Brittle texture. Common contaminant in amosite deposits.
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.)	9020
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		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.		Notes: TWA = 0.1 f/cc AS DETERMINED BY A 400-LITER AIR SAMPLE COLLECTED OVER 100 MINUTES (NIOSH ANALYTICAL		Notes: See ASBESTOS, ALL FORMS		Notes: See ASBESTOS, ALL FORMS
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

NIOSH: Pocket Guide to Chemical Hazards - Asbestos

Literature References

Last Updated Date : 11/17/2020

HEXACHLOROCYCLOPENTADIENE

Chemical Identification
CAS #	77-47-4
Formula	C₅Cl₆
Synonyms	HCCPD; hexachloro-1,3-cyclopentadiene; 1,2,3,4,5,5-hexachloro-1,3-cyclopentadiene; perchlorocyclopentadiene

Physical Properties
Physical description	Pale-yellow to amber-colored liquid with a pungent, unpleasant odor.
Boiling point	462°F	Molecular weight	272.8
Freezing point/melting point	16°F	Vapor pressure	0.08 mmHg at 77°F
Flash point		Vapor density	9.4
Specific gravity	1.71	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.)	1374
Sampling group
Sampler/Sampling media	Sorbent tubes, 2 Porapak-T tubes [SKC 226-116A]
Sampling time^*
Sampling volume (TWA)^*	0.25 L - 90 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-ECD
Method reference	NIOSH 2518 (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	0.01 ppm (0.1 mg/m³)	TLV-TWA	0.01 ppm [1990]	PEL-TWA	0.01 ppm (0.11 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: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Hexachlorocyclopentadiene

NIOSH: Pocket Guide to Chemical Hazards - Hexachlorocyclopentadiene

Literature References

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

Last Updated Date : 01/29/2021

BARIUM SULFATE†

Chemical Identification
CAS #	7727-43-7
Formula	BaSO₄
Synonyms	artificial barite; barite; barium salt of sulfuric acid; barytes (natural)

Physical Properties
Physical description	White or yellowish, odorless powder.
Boiling point	2912°F (decomposes)	Molecular weight	233.4
Freezing point/melting point	2876°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	4.25-4.5	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.)	B101 (total); request using analyte code 9135	B104 (resp); request using analyte code 9030
Sampling group
Sampler/Sampling media	Tared low-ash 37 mm PVC filter, 5 microns [SLTC108]	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	240-480 min
Sampling volume (TWA)^*	960 L	816 L
Sampling flow rate (TWA)^*	2 L/min	1.7 L/min ±5%
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	Gravimetric	Gravimetric
Method reference	OSHA PV2121 (partially validated)	OSHA PV2121 (partially validated)
Notes	Samples collected for this compound are analyzed gravimetrically. Results reported for the requested compound will be qualified based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes; no further work on the sample will be performed due to method limitations.	Samples collected for this compound are analyzed gravimetrically. Results reported for the requested compound will be qualified based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes; no further work on the sample will be performed due to method limitations. The standard applies to the Respirable Fraction. Samples must be collected with a Dorr-Oliver cyclone.
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	15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)	REL-TWA	10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)	TLV-TWA		PEL-TWA	10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: Visit the ACGIH TLV site for specific data The value is for particulate matter containing no asbestos and <1% crystalline silica.		Notes: As Particulates not otherwise regulated. See footnote [n].
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Barium sulfate

NIOSH: Pocket Guide to Chemical Hazards - Barium sulfate

Literature References

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

Last Updated Date : 04/02/2024

DIMETHYL SUCCINATE

Chemical Identification
CAS #	106-65-0
Formula	C₆H₁₀O₄
Synonyms	butanedioic acid, dimethyl Ester; dimethyl butanedioate; methyl succinate; succinic acid, dimethyl ester

Physical Properties
Physical description	Colorless liquid.
Boiling point	385.5°F	Molecular weight	146.14
Freezing point/melting point	67.1°F	Vapor pressure	0.3 mmHg at 68°F
Flash point	185°F	Vapor density
Specific gravity	1.117	Ionization potential
Lower explosive limit (LEL)	1%	Upper explosive limit (UEL)	8.5%
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.)	D917
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
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	GC-FID
Method reference	OSHA PV2021 (partially validated)
Notes	Samples should be refrigerated after sampling and shipped overnight to the laboratory.
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 - Dimethyl succinate

NIOSH: Pocket Guide to Chemical Hazards - Dimethyl succinate

Literature References

Last Updated Date : 12/28/2020

BROMINE†

Chemical Identification
CAS #	7726-95-6
Formula	Br₂
Synonyms	molecular bromine

Physical Properties
Physical description	Dark reddish-brown, fuming liquid with suffocating, irritating fumes.
Boiling point	139°F	Molecular weight	159.8
Freezing point/melting point	19°F	Vapor pressure	172 mmHg
Flash point		Vapor density	5.51
Specific gravity	3.1023	Ionization potential	10.55 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	3	NFPA fire rating	0
NFPA reactivity rating	0	NFPA special instruction	OX: Possesses oxidizing properties
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0390
Sampling group
Sampler/Sampling media	Midget fritted glass bubbler (MFGB) containing 10 mL 0.003 M NaHCO₃/0.0024 M Na₂CO₃ - Bromine Sampling Solution [SLTC110SOL]
Sampling time^*
Sampling volume (TWA)^*	30 L
Sampling flow rate (TWA)^*	0.5 L/min
Sampling volume (STEL/Peak/C)^*	7.5 L
Sampling flow rate (STEL/Peak/C)^*	0.5 L/min
Analytical method instruments	IC
Method reference	OSHA ID-108 (fully validated)
Notes	These media are prepared by SLTC as needed and are not available for immediate shipment. Please allow time for SLTC to prepare these media prior to sampling.
Special requirements	Submit as a separate sample.

^* 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	Detector tube
Model/Type	Matheson-Kitagawa 8014-114	Gastec 8LA
Sampling information (see manufacturer instructions)	follow mfr instructions, approx 1-20 ppm range	4 strokes, 0.05-0.8 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	0.1 ppm (0.7 mg/m³)	REL-TWA	0.1 ppm (0.7 mg/m³)	TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL	0.3 ppm (2 mg/m³)	TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C	0.1 ppm (0.7 mg/m³)
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
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	3 ppm
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 0.1 ppm/0.5 ppm/5 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Bromine

NIOSH: Pocket Guide to Chemical Hazards - Bromine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Bromine. See annual publication for most recent information.
(RADS following bromine exposure) Burns, M.J. and Linden, C.H.: Another hot tub hazard. Toxicity secondary to bromine and hydrobromic acid exposure. Chest 111(3): 816-819, 1997.
Woolf, A. and Shannon, M.: Reactive airways dysfunction and systemic complaints after mass exposure to bromine. Environ. Health Perspect. 107(6): 507-507, 1999.
(bromination of lung proteins) Wu, W., Samoszuk, M.K., Comhair, S.A., Thomassen, M.J., Farver, C.F., Dweik, R.A., Kavuru, M.S., Erzurum, S.C. and Hazen, S.L.: Eosinophils generate brominating oxidants in allergen-induced asthma. J. Clin. Invest. 105(10): 1455-1463, 2000.
Aldridge, R.E., Chan, T., van Dalen, C.J., Senthilmohan, R., Winn, M., Venge, P., Town, G.I. and Kettle, A.J.: Eosinophil peroxidase produces hypobromous acid in the airways of stable asthmatics. Free Rad. Biol. Med. 33(6): 847-856, 2002.
(burns from bromine) Singer, A., Sagi, A., Ben Meir, P. and Rosenberg, L.: Chemical burns: our 10-year experience. Burns 18(3): 250-252, 1992.

Last Updated Date : 04/03/2024

PHOSPHORUS (YELLOW)†

Chemical Identification
CAS #	7723-14-0; 12185-10-3
Formula	P₄
Synonyms	elemental phosphorus; white phosphorus

Physical Properties
Physical description	White to yellow, soft, waxy solid with acrid fumes in air.
Boiling point	536°F	Molecular weight	123.89
Freezing point/melting point	111.4°F	Vapor pressure	0.03 mmHg
Flash point		Vapor density
Specific gravity	1.82	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	4	NFPA fire rating	4
NFPA reactivity rating	2	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2090
Sampling group
Sampler/Sampling media	Tenax® GC tube (100/50 mg) [Supelco 20832-U]
Sampling time^*
Sampling volume (TWA)^*	5-100 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-FPD
Method reference	NIOSH 7905 (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	0.1 mg/m³	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		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	5 mg/m³
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Phosphorus, white, dry or under water or in solution

NIOSH: Pocket Guide to Chemical Hazards - Phosphorus (yellow)

Literature References

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

Last Updated Date : 01/08/2021

HYDROGEN PEROXIDE†

Chemical Identification
CAS #	7722-84-1
Formula	H₂O₂
Synonyms	high-strength hydrogen peroxide; hydrogen dioxide; hydrogen peroxide (aqueous); hydroperoxide; peroxide

Physical Properties
Physical description	Colorless liquid with a slightly sharp odor.
Boiling point	286°F	Molecular weight	34
Freezing point/melting point	12°F	Vapor pressure	5 mmHg at 86°F
Flash point		Vapor density
Specific gravity	1.39	Ionization potential	10.54 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	3	NFPA fire rating	0
NFPA reactivity rating	3	NFPA special instruction	OX: Possesses oxidizing properties.
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1470
Sampling group
Sampler/Sampling media	(2) 25 mm quartz filters coated with titanium oxysulfate [SKC 225-9030]
Sampling time^*	240 min
Sampling volume (TWA)^*	240 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*	30 L
Sampling flow rate (STEL/Peak/C)^*	2 L/min
Analytical method instruments	UV-VIS
Method reference	OSHA 1019 (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	Detector tube	Detector tube	CMS Chip
Model/Type	Dräger - Hydrogen Peroxide 0.1/a, 8101041	Gastec 32	Hydrogen peroxide, 0.2-2 ppm range
Sampling information (see manufacturer instructions)	20 strokes, approx 0.05-3 ppm range, uncertainty approx 25%.	5 strokes, 0.1-10 ppm range, uncertainty 16% for 0.5-2 ppm, 8% for 4-10 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	1 ppm (1.4 mg/m³)	REL-TWA	1 ppm (1.4 mg/m³)	TLV-TWA	1 ppm [1990]	PEL-TWA	1 ppm (1.4 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	75 ppm
Carcinogenic classifications: IARC-3, TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 10 ppm/50 ppm/100 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Hydrogen peroxide, aqueous solution, stabilized, with more than 60% hydrogen peroxide

NIOSH: Pocket Guide to Chemical Hazards - Hydrogen peroxide

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Hydrogen peroxide. See annual publication for most recent information.
Ashdown, B.C., Stricof, D.D., May, M.L., Sherman, S.J. and Carmody, R.F.: Hydrogen peroxide poisoning causing brain infarction: neuroimaging findings. AJR Am. J. Roentgenol. 170(6):1653-5, 1998.
Pohanish, R.P. (editor): Hydrogen Peroxide. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1286-1288.
Vander Heide, S.J. and Seamon, J.P.: Resolution of delayed altered mental status associated with hydrogen peroxide ingestion following hyperbaric oxygen therapy. Acad. Emerg. Med. 10(9): 998-1000, 2003.

Last Updated Date : 12/31/2020

PHOSPHORUS TRICHLORIDE†

Chemical Identification
CAS #	7719-12-2
Formula	PCl₃
Synonyms	phosphorus chloride

Physical Properties
Physical description	Colorless to yellow, fuming liquid with an odor like hydrochloric acid.
Boiling point	169°F	Molecular weight	137.35
Freezing point/melting point	-170°F	Vapor pressure	100 mmHg at 69.8°F
Flash point		Vapor density	4.75
Specific gravity	1.58	Ionization potential	9.91 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	4	NFPA fire rating	0
NFPA reactivity rating	2	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2093
Sampling group
Sampler/Sampling media	Midget fritted glass bubbler (MFGB) containing 15 mL Distilled Water [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-5100]
Sampling time^*
Sampling volume (TWA)^*	11-100 L
Sampling flow rate (TWA)^*	0.05-0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	UV-VIS
Method reference	NIOSH 6402 (partially validated)
Notes	Ship in sealed bubblers.
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	0.5 ppm (3 mg/m³)	REL-TWA	0.2 ppm (1.5 mg/m³)	TLV-TWA	0.2 ppm [1992]	PEL-TWA	0.2 ppm (1.5 mg/m³)
PEL-STEL		REL-STEL	0.5 ppm (3 mg/m³)	TLV-STEL	0.5 ppm [1992]	PEL-STEL	0.5 ppm (3 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	25 ppm
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 0.5 ppm/3 ppm/15 ppm

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Phosphorus trichloride

NIOSH: Pocket Guide to Chemical Hazards - Phosphorus trichloride

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Phosphorus trichloride. See annual publication for most recent information.
Kapias, T. and Griffiths, R.F.: Spill behavior using REACTPOOL. Part III. Results for accidental releases of phosphorus trichloride (PCl(3)) and oxychloride (POCl (3)) and general discussion. J. Hazard. Mater. 81(3): 223-249, 2001.

Last Updated Date : 01/22/2024

LEAD CHROMATE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ASBESTOS - TREMOLITE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ASBESTOS - ACTINOLITE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

HEXACHLOROCYCLOPENTADIENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

BARIUM SULFATE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIMETHYL SUCCINATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

BROMINE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

PHOSPHORUS (YELLOW)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

HYDROGEN PEROXIDE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

PHOSPHORUS TRICHLORIDE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References