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November 24, 2024

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.

Bismuth telluride, Undoped  

French name in the regulation: Bismuth, tellure de, Non dopé
CAS : 1304-82-1

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV - 10 - -
STEV - - - -
Ceiling - - - -
Carcinogenicity Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited recirculation
Minimum exposureExplosion hazard
Ototoxic

TWA adjustment for unusual work schedules

1C : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Bismuth telluride, Undoped

Analysis:

Weight measurement for total dusts

Method: IRSST - 48-1

Sampling protocol

Sampling device:
Sampling media required:
#IRSSTDescription
902 Preweighed PVC filter, 37 mm, 5 µm

Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -

Principle: Gravimetric measurement (Grav)
Precision (%): 4,0
Minimum reported value: 25 µg
Remarks: Additional information is available in Info-Labo 1991-03. The weight measurement method for dusts is by definition non-specific.

IRSST. "Poussière totale". Méthode 48-1. Méthodes analytiques. Montréal: IRSST, 1998.

Weight measurement for total dusts

Method: IRSST - 48-1

Sampling protocol

Sampling device:
Sampling media required:
#IRSSTDescription
914 PVC filter, 25 mm, preweighed, 5 µm

Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -

Principle: Gravimetric measurement (Grav)
Precision (%): 4,0
Minimum reported value: 25 µg
Remarks: Additional information is available in Info-Labo 1991-03. The weight measurement method for dusts is by definition non-specific.

IRSST. "Poussière totale". Méthode 48-1. Méthodes analytiques. Montréal: IRSST, 1998.

Weight measurement for total dusts

Method: IRSST - 48-1

Sampling protocol

Sampling device:
Sampling media required:
#IRSSTDescription
997 PVC filter, 37 mm 5 µm, preweighed, 3-part

Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -

Principle: Gravimetric measurement (Grav)
Precision (%): 4,0
Minimum reported value: 25 µg
Remarks: Additional information is available in Info-Labo 1991-03. The weight measurement method for dusts is by definition non-specific.

IRSST. "Poussière totale". Méthode 48-1. Méthodes analytiques. Montréal: IRSST, 1998.

Bismuth

Recommended method by the IRSST:
Method: OSHA - ID121

Sampling protocol

Sampling device: Mixed cellulose ester filter
Parameters:
Flow rate: 2 L/min
TWA sampling volume: 960 L
STEL sampling volume: -
Remarks: This substance is not analyzed by our laboratories. It might be possible that the analysis be performed by another laboratory. Please contact the IRSST before sampling.

Principle: Flame atomic absorption spectrophotometry (FAAS)
Remarks: A stoichiometric factor must be applied.

OSHA Analytical Methods Manual. Method ID121. Metals & metalloid particulates in workplace atmosphere, 2002.