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RHODIUM, SOLUBLE COMPOUNDS†

Chemical Identification
CAS #	7440-16-6
Formula	Rh
Synonyms	Synonyms vary depending upon the specific soluble rhodium compound.

Physical Properties
Physical description	Appearance and odor vary depending upon the specific soluble rhodium compound.
Boiling point		Molecular weight
Freezing point/melting point		Vapor pressure	depends upon the specific compound
Flash point		Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
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	0.001 mg/m³	REL-TWA	0.001 mg/m³	TLV-TWA	0.01 mg/m³ [1981]	PEL-TWA	0.001 mg/m³ (soluble salts, as Rh)
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	2 mg/m³
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Rhodium (soluble compounds, as Rh)

NIOSH: Pocket Guide to Chemical Hazards - Rhodium (soluble compounds, as Rh)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Rhodium [7440-16-6], as Rh. Soluble compounds. See annual publication for most recent information.

Last Updated Date : 01/29/2021

RHODIUM, METAL & INSOLUBLE COMPOUNDS†

Chemical Identification
CAS #	7440-16-6
Formula	Rh (metal)
Synonyms	rhodium metal: elemental rhodium. Synonyms of other insoluble rhodium compounds vary depending upon the specific compound.

Physical Properties
Physical description	White, hard, ductile, malleable solid with a bluish-gray luster. Metal fume is a reddish-gray to black dust-like powder.
Boiling point	6741°F	Molecular weight	102.9
Freezing point/melting point	3571°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	12.41 (metal)	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	0.1 mg/m³	REL-TWA	0.1 mg/m³	TLV-TWA	1 mg/m³ [1981]	PEL-TWA	0.1 mg/m³ (insoluble compounds, as Rh)
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	100 mg/m³
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Rhodium (metal fume)

NIOSH: Pocket Guide to Chemical Hazards - Rhodium (metal fume and insoluble compounds, as Rh)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Rhodium [7440-16-6], as Rh. Metal and Insoluble compounds. See annual publication for most recent information.

Last Updated Date : 01/11/2021

DIMETHYL ADIPATE

Chemical Identification
CAS #	627-93-0
Formula	C₈H₁₄O₄
Synonyms	dimethyl hexanedioate; methyl adipate; hexanedioic acid, dimethyl ester

Physical Properties
Physical description	Colorless liquid.
Boiling point	228.2-230°F at 14 mmHg	Molecular weight	174.2
Freezing point/melting point	46.4°F	Vapor pressure
Flash point	225°F	Vapor density
Specific gravity	1.063	Ionization potential
Lower explosive limit (LEL)	0.81%	Upper explosive limit (UEL)	8.1%
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.)	D649
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 PV2019 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dimethyl adipate

NIOSH: Pocket Guide to Chemical Hazards - Dimethyl adipate

Literature References

Last Updated Date : 12/28/2020

PLATINUM SOLUBLE SALTS†

Chemical Identification
CAS #	7440-06-4
Formula	Pt
Synonyms	Synonyms vary depending upon the specific soluble platinum salt.

Physical Properties
Physical description	Appearance and odor vary depending upon the specific soluble platinum salt.
Boiling point		Molecular weight
Freezing point/melting point		Vapor pressure	depends upon the specific compound
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.)	2130
Sampling group
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
Sampling time^*	50-67 min
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1.5-2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	ICP-MS
Method reference	OSHA ID-130SG (partially validated)
Notes	Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. Analysis for this analyte is based on water solubility.
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 smear tab. [WHA1450993]
Bulk Method	Available

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	0.002 mg/m³	REL-TWA	0.002 mg/m³	TLV-TWA	0.002 mg/m³ [1979]	PEL-TWA	0.002 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	4 mg/m³
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Platinum

NIOSH: Pocket Guide to Chemical Hazards - Platinum (soluble salts, as Pt)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Platinum [7440-06-4] and soluble salts, Soluble salts, as Pt. See annual publication for most recent information.

Last Updated Date : 01/29/2021

PLATINUM METAL

Chemical Identification
CAS #	7440-06-4
Formula	Pt
Synonyms	platinum black; platinum metal; platinum sponge

Physical Properties
Physical description	Silvery, whitish-gray, malleable, ductile metal.
Boiling point	6921°F	Molecular weight	195.1
Freezing point/melting point	3222°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	21.45	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.)	P211
Sampling group
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	AAS/AES
Method reference	OSHA ID-121 (fully validated)
Notes	OSHA staff, please contact the SLTC before sampling.
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 smear tab. [WHA1450993]
Bulk Method	Available

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	1 mg/m³	TLV-TWA	1 mg/m³ [1979]	PEL-TWA	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:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Platinum

NIOSH: Pocket Guide to Chemical Hazards - Platinum

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Platinum [7440-06-4] and soluble salts, Metal. See annual publication for most recent information.

Last Updated Date : 01/08/2021

NICKEL, SOLUBLE COMPOUNDS†

Chemical Identification
CAS #	7440-02-0
Formula	Ni
Synonyms	nickel metal; elemental nickel; nickel catalyst; nickel subsulfide; raney nickel; Other synonyms vary depending upon the specific nickel compound.

Physical Properties
Physical description	Lustrous, silvery odorless metal
Boiling point	5139°F	Molecular weight	58.7
Freezing point/melting point	2831°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	8.90 (metal)	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)	2831°F
NFPA health rating	2	NFPA fire rating	4
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.)	1842
Sampling group
Sampler/Sampling media	Mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) and filter spacer with Na₂CO₃ impregnated backup pad, in a 3-piece cassette [SKC 225-9001]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	ICP
Method reference	OSHA ID-125G (fully validated)
Notes	Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. Analysis for this analyte is based on water solubility.
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	Ghost Wipe [SKC 225-2414]
Bulk Method	Available

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	1 mg/m³	REL-TWA	0.015 mg/m³	TLV-TWA	0.1 mg/m³ (inhalable particulate matter) [1996]	PEL-TWA	0.05 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: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	10 mg/m³ (as Ni)
Carcinogenic classifications: NTP-K, TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Nickel

NIOSH: Pocket Guide to Chemical Hazards - Nickel metal and other compounds (as Ni)

Literature References

NOAA: CAMEO Chemicals - Nickel compounds.
ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Nickel [7440-02-0] and inorganic compounds including Nickel subsulfide, as Ni. See annual publication for most recent information.
ATSDR Toxicological Profiles - Nickel. Updated August, 2005. (accessed 7/1/09)
Chashschin VP, Artunina GP, Norseth T. Congential defects, abortion and other health effects in nickel refinery workers. Science Total Environ, 1994; 148:287-91.
Das KK, Das SN, Dhundasi SA. Nickel, its adverse health effects & oxidative stress. Indian J Med Res, 2008; 128:412-25. (good review)
EPA IRIS, Nickel, soluble salts (CASRN Various). Last updated 1/10/08. (accessed 6/9/09)
Lu S, Duffin R, Poland C, Daly P, Murphy F, Drost E, MacNee W, Stone V, Donaldson K. Efficacy of simple short-term in vitro assays for predicting the potential of metal oxide nanoparticles to cause pulmonary inflammation. Environ Health Persp, 2009; 117:241-7.
Rom WN. Environmental and Occupational Medicine, 4^th Edition. Chapter 68. Nickel Compounds. Lippincott, Williams & Wilkins, 2007.
Salnikow K, Zhitkovich. Genetic and epigenetic mechanisms in metal carcinogenesis and cocarcinogenesis: nickel, arsenic and chromium. Chem Res Toxicol, 2008; 21:28-44.
Vaktskjold A, Talykova LV, Chashehin VP, Odland JO, Nieboer E. Spontaneous abortions among nickel-exposed female refinery workers. Int J Environ Health Res, 2008; 18:99-115.

Last Updated Date : 01/05/2021

DIMETHOATE

Chemical Identification
CAS #	60-51-5
Formula	C₅H₁₂NO₃PS₂
Synonyms	phosphorodithioic acid, O,O-dimethyl S-[2-(methylamino) -2-oxoethyl]ester; Cygon; Fostion mm; Perfekthion; Rogor; Roxion; Fosfamid; O,O-dimethyl S-(N-methylcarbamoylmethyl) phosphorodithioate

Physical Properties
Physical description	A white crystalline solid, with a camphor-like odor, white to grayish crystals for technical product.
Boiling point	243°F at 0.1 mmHg	Molecular weight	229.28
Freezing point/melting point	125°F	Vapor pressure	8.5x10-6 mmHg
Flash point	124°F	Vapor density
Specific gravity	1.277 at 149°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.)	D617
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^*	480 min
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	GC-FPD
Method reference	OSHA PV2113 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dimethoate

NIOSH: Pocket Guide to Chemical Hazards - Dimethoate

Literature References

Last Updated Date : 12/28/2020

NICKEL, METAL & INSOLUBLE COMPOUNDS (as Ni)†

Chemical Identification
CAS #	7440-02-0
Formula	Ni
Synonyms	nickel metal; elemental nickel; nickel catalyst; nickel subsulfide; raney nickel; Other synonyms vary depending upon the specific nickel compound.

Physical Properties
Physical description	Lustrous, silvery odorless metal
Boiling point	5139°F	Molecular weight	58.7
Freezing point/melting point	2831°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	8.90 (metal)	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)	2831°F
NFPA health rating	2	NFPA fire rating	4
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.)	1840
Sampling group	METALSSG-2
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	ICP
Method reference	OSHA ID-125G (fully validated)
Notes	Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. Smaller filters recommended for sampling inside welding hoods.
Special requirements	For the entire suite of analytes listed in METALSSG-2, request analyte code 2587.

^* 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	Ghost Wipe [SKC 225-2414]
Bulk Method	Available

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	1 mg/m³	REL-TWA	0.015 mg/m³	TLV-TWA	elemental: 1.5 mg/m³ (inhalable particluate matter), insoluble inorganic compounds (NOS): 0.2 mg/m³ (inhalable particulate matter) [1996]	PEL-TWA	0.5 mg/m³ (metal), 0.1 mg/m³ (insoluble compounds)
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: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	10 mg/m³
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, TLV-A5		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Nickel

NIOSH: Pocket Guide to Chemical Hazards - Nickel metal and other compounds (as Ni)

Literature References

NOAA: CAMEO Chemicals - Nickel compounds.
EPA: Hazard Summary - Nickel Compounds
ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Nickel [7440-02-0] and inorganic compounds, including Nickel subsulfide, as Ni. See annual publication for most recent information.
ATSDR: Toxicological Profile for Nickel. August 2005.
California Occupational Safety & Health Standards Board: Initial and Final Statement of Reasons. August 3, 2010.
Fishwick, D., Bradshaw, L., Slater, T., Curran, A. and Pearce, N.: Respiratory symptoms and lung function change in welders: are they associated with workplace exposures? N. Z. Med. J. 117(1193): U872, 2004.
NIOSH: Occupational Health Guideline for Nickel Metal and Soluble Nickel Compounds. September 1978.
NIOSH: Criteria for a Recommended Standard - Occupational Exposure to Inorganic Nickel. May 1977.
Rom, W.N. (ed.): Environmental and Occupational Medicine. 2nd ed. Boston, MA, Little, Brown and Company, p. 809. 1992.
Sunderman, F.W., Jr.: Nasal toxicity, carcinogenicity, and olfactory uptake of metals. Ann. Clin. Lab. Sci. 31(1): 3-24, 2001.
Zenz, C., O.B. Dickerson, E.P. Horvath. Occupational Medicine. 3rd ed. St. Louis, MO., p. 106, 1994.

Last Updated Date : 06/14/2023

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)
mixed cellulose ester filter (MCEF)	240-480 min	480-960 L	2 L/min

Analytes Sampling Information
Analytes	IMIS Code	Wipe Sampling	Incompatibilities
Iron*	I200	Yes, with a Ghost Wipe
Vanadium*	V125	Yes, with a Ghost Wipe
Zinc*	Z100	Yes, with a Ghost Wipe
Chromium, Metal & Insoluble salts (as Cr)**	0685	Yes, with a Ghost Wipe	Hexavalent Chromium
Cobalt, Metal, Dust & Fume (as Co)	0720	Yes, with a Ghost Wipe	Tungsten
Copper Dust & Mists (as Cu)	0730	Yes, with a Ghost Wipe
Copper Fume (as Cu)	0731	Yes, with a Ghost Wipe
Iron Oxide Fume	1520	Yes, with a Ghost Wipe
Manganese, Compounds & Fume (as Mn)***	1620	Yes, with a Ghost Wipe
Molybdenum, Dust & Insoluble compounds, (as Mo)	1790	Yes, with a Ghost Wipe
Nickel, Metal, & Insoluble compounds (as Ni)	1840	Yes, with a Ghost Wipe
Vanadium, Respirable Dust & Fume	2571	Yes, with a Ghost Wipe
Zinc Oxide Fume	2610	Contact SLTC for information

Notes

Request any or all of these analytes together. Entire group can be requested with analyte code 2587.

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

There is no need to contact SLTC before sampling.

This analysis can be pre-analyzed gravimetrically if collected on a pre-weighted PVC filter obtained from SLTC.

*These 3 codes are used for bulk sample results in place of their metal oxides.

**Please note that this is NOT hexavalent chromium.

***For Manganese STEL take only a 10-30 L sample.

MOLYBDENUM, SOLUBLE COMPOUNDS†

Chemical Identification
CAS #	7439-98-7
Formula	Mo
Synonyms	molybdenum metal

Physical Properties
Physical description	Dark gray or black powder with a metallic luster.
Boiling point	8717°F	Molecular weight	95.9
Freezing point/melting point	4752°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	10.28	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.)	1791
Sampling group
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) [MAWP037A0]
Sampling time^*	240 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	ICP
Method reference	OSHA ID-125G (fully validated)
Notes	Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. Analysis for this analyte is based on water solubility.
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 mg/m³	REL-TWA		TLV-TWA	0.5 mg/m³ (respirable particulate matter) [1999]	PEL-TWA	0.5 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	NA	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: See Appendix D - Substances with No Established RELs.		Notes:		Notes: See footnote [n].
Health factors: See NIH-NLM PubChem.		IDLH	1000 mg/m³
Carcinogenic classifications: TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Molybdenum

NIOSH: Pocket Guide to Chemical Hazards - Molybdenum (soluble compounds, as Mo)

Literature References

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

Last Updated Date : 02/09/2026

MOLYBDENUM, DUST & INSOLUBLE COMPOUNDS (as Mo)†

Chemical Identification
CAS #	7439-98-7
Formula	Mo
Synonyms	molybdenum metal

Physical Properties
Physical description	Dark gray or black powder with a metallic luster.
Boiling point	8717°F	Molecular weight	95.9
Freezing point/melting point	4752°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	10.28	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.)	1790
Sampling group	METALSSG-2
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	ICP
Method reference	OSHA ID-125G (fully validated)
Notes	Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as a specific form or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. The physical form of a sample (dust, mist, or fume) is identified by the compliance officer using available documentation of materials and processes. Smaller filters recommended for sampling inside welding hoods.
Special requirements	For the entire suite of analytes listed in METALSSG-2, request analyte code 2587.

^* 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	Ghost Wipe [SKC 225-2414]
Bulk Method	Available

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)	REL-TWA		TLV-TWA	10 mg/m³ (inhalable particulate matter), 3 mg/m³ (respirable particulate matter) [1999]	PEL-TWA	10 mg/m³ (total dust), 3 mg/m³ (respirable)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	NA	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: See Appendix D - Substances with No Established RELs.		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	5000 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 - Molybdenum

NIOSH: Pocket Guide to Chemical Hazards - Molybdenum

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Carbon monoxide. See annual publication for most recent information.
Occupational Health Guidelines for Chemical Hazards. DHHS/ NIOSH Publication No. 81-123, (January 1981). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.
ATSDR: Toxicological profile for carbon monoxide. June 2012.
EPA: Integrated Science Assessment for Carbon Monoxide (Final Report). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-09/019F. January 29, 2010.
NIOSH: Criteria Document for a Recommended Standard - Occupational Exposure to Carbon Monoxide. 1972.
Sari I, Zengin S, Ozer O, Davutoglu V, Yildirim C, Aksoy M: Chronic carbon monoxide exposure increases electrocardiographic P-wave and QT dispersion. Inhal Toxicol. 20(9):879-84, July 2008.

Last Updated Date : 06/14/2023

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)
mixed cellulose ester filter (MCEF)	240-480 min	480-960 L	2 L/min

Analytes Sampling Information
Analytes	IMIS Code	Wipe Sampling	Incompatibilities
Iron*	I200	Yes, with a Ghost Wipe
Vanadium*	V125	Yes, with a Ghost Wipe
Zinc*	Z100	Yes, with a Ghost Wipe
Chromium, Metal & Insoluble salts (as Cr)**	0685	Yes, with a Ghost Wipe	Hexavalent Chromium
Cobalt, Metal, Dust & Fume (as Co)	0720	Yes, with a Ghost Wipe	Tungsten
Copper Dust & Mists (as Cu)	0730	Yes, with a Ghost Wipe
Copper Fume (as Cu)	0731	Yes, with a Ghost Wipe
Iron Oxide Fume	1520	Yes, with a Ghost Wipe
Manganese, Compounds & Fume (as Mn)***	1620	Yes, with a Ghost Wipe
Molybdenum, Dust & Insoluble compounds, (as Mo)	1790	Yes, with a Ghost Wipe
Nickel, Metal, & Insoluble compounds (as Ni)	1840	Yes, with a Ghost Wipe
Vanadium, Respirable Dust & Fume	2571	Yes, with a Ghost Wipe
Zinc Oxide Fume	2610	Contact SLTC for information

Notes

Request any or all of these analytes together. Entire group can be requested with analyte code 2587.

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

There is no need to contact SLTC before sampling.

This analysis can be pre-analyzed gravimetrically if collected on a pre-weighted PVC filter obtained from SLTC.

*These 3 codes are used for bulk sample results in place of their metal oxides.

**Please note that this is NOT hexavalent chromium.

***For Manganese STEL take only a 10-30 L sample.

RHODIUM, SOLUBLE COMPOUNDS†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

RHODIUM, METAL & INSOLUBLE COMPOUNDS†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIMETHYL ADIPATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

PLATINUM SOLUBLE SALTS†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

PLATINUM METAL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

NICKEL, SOLUBLE COMPOUNDS†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIMETHOATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

NICKEL, METAL & INSOLUBLE COMPOUNDS (as Ni)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

MOLYBDENUM, SOLUBLE COMPOUNDS†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

MOLYBDENUM, DUST & INSOLUBLE COMPOUNDS (as Mo)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References