Iron trioxide, dust and fume

According to Decree 280-2024 published on February 28, 2024, in the Gazette officielle du Québec, the amendment to the Appendix 1 of the Regulation respecting occupational health and safety (RSST, RLRQ, c. S-2.1, r. 13) will come into force on March 14, 2024. These regulatory changes have not yet been incorporated into the current Substance Data Sheets of the Sampling Guide for Air Contaminants in the Workplace. An update is currently underway and will be available as soon as possible. Consequently, the information contained in the data sheets of substances modified or added in Decree 280-2024 is partially inaccurate or incomplete. Please consult our infoLABO (in French only) for more details. Please contact our client service: [email protected] for further information.

Iron trioxide, dust and fume

French name in the regulation: Fer, trioxyde de, fumées et poussières

CAS : 1309-37-1

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	-	5	-	-
STEV	-	-	-	-
Ceiling	-	-	-	-

Carcinogenicity		Sensitizer
Simple asphyxiant		Percutaneous
Prohibited use		Prohibited recirculation
Minimum exposure		Explosion hazard
Ototoxic

TWA adjustment for unusual work schedules

III : Weekly adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Iron trioxide, dust and fume

Analysis:

Fer (exprimé en Fe)

Method: IRSST - 362

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
913	MCE filter, 37 mm, 0,8µm, preweighed

Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -
Remarks: Refer to the information in InfoLABO 2018-11 regarding limitations related to gravimetric measurement obtained through the use of these cassette. A surface wipe sampling is available. For more information, please contact the IRSST.

Analytical protocol

Principle: Inductively coupled plasma spectrometry (ICP-MS)
Precision (%): 1,9
Minimum reported value: 10 µg
Remarks: This method allows the analysis of chemical elements present in the sample without distinguishing the different chemical forms. The analytical results are expressed as total iron.

Reference

IRSST, Détermination de métaux dans l'air des lieux de travail par spectrométrie de masse avec plasma à couplage inductif (ICP-MS), Méthodes analytiques, / MA-362-fr, Montréal, IRSST, 2010, 17 pages.

Fer (exprimé en Fe)

Method: IRSST - 362

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
916	MCE filter, 25 mm, 0.8µm, preweighed

Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -
Remarks: Refer to the information in InfoLABO 2018-11 regarding limitations related to gravimetric measurement obtained through the use of these cassette. A surface wipe sampling is available. For more information, please contact the IRSST.

Analytical protocol

Principle: Inductively coupled plasma spectrometry (ICP-MS)
Precision (%): 1,9
Minimum reported value: 10 µg
Remarks: This method allows the analysis of chemical elements present in the sample without distinguishing the different chemical forms. The analytical results are expressed as total iron.

Reference

IRSST, Détermination de métaux dans l'air des lieux de travail par spectrométrie de masse avec plasma à couplage inductif (ICP-MS), Méthodes analytiques, / MA-362-fr, Montréal, IRSST, 2010, 17 pages.

Fer Solu-Sert

Method: IRSST - 394

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
990	25-mm Solu-Sert MCE filter

Parameters:
Flow rate: 1.5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -
Remarks: A surface wipe sampling is available. For more information, please contact the IRSST.

Analytical protocol

Principle: Inductively coupled plasma spectrometry (ICP-MS)
Precision (%): 2,7
Minimum reported value: 5 µg
Remarks: This method allows the analysis of chemical elements present in the sample without distinguishing the different chemical forms. The analytical results are expressed as total iron.

Reference

IRSST. Détermination de la concentration des métaux dans l’air par ICP-MS – Prélèvement effectué sur filtre encapsulé digérable Solu Sert.

Fer Solu-Sert

Method: IRSST - 394

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
992	37-mm Solu-Sert MCE filter

Parameters:
Flow rate: 1.5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -
Remarks: A surface wipe sampling is available. For more information, please contact the IRSST.

Analytical protocol

Principle: Inductively coupled plasma spectrometry (ICP-MS)
Precision (%): 2,7
Minimum reported value: 5 µg
Remarks: This method allows the analysis of chemical elements present in the sample without distinguishing the different chemical forms. The analytical results are expressed as total iron.

Reference

IRSST. Détermination de la concentration des métaux dans l’air par ICP-MS – Prélèvement effectué sur filtre encapsulé digérable Solu Sert.