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IRSST - Institut de recherche Robert-Sauvé en santé et en sécurité du travail
OHS Research
Research at the IRSST
Reference Framework
Scientists Directory
Publications and Tools
IRSST's Production
Magazine and Newsletter
Scientific Watch
Documentation Center
Useful Links
Laboratory Services
Laboratories
Analysis and Testing Services
Laboratory Methods
Masks Efficacy Evaluation
Workplace Air Contaminants
Slip Resistance Test for Protective Footwear
Loan, Calibration and Repairs
Recognition Programs
CQ Fibres
Quality Control of Fiber Counts
CQ Vrac
Recognized Laboratories
Interlaboratory quality
control program
Guides and Tools
Instruments and Sampling Material
Register
Research Fund and Partnerships
Research Fund and Partnerships
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Scholarships
Master’s Scholarship and Supplement
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Postdoctoral Fellowship
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substance
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substance
August 27, 2025
Barium [7440-39-3], soluble compounds
French name in the regulation:
Baryum [7440-39-3], composés solubles
CAS :
7440-39-3
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
0,5
-
-
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
II
: Daily adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
Barium [7440-39-3], soluble compounds
Analysis:
Baryum, composés solubles (exprimé en Ba)
Method: IRSST - 374
Sampling protocol
Sampling device:
Sampling media required:
#IRSST
Description
903
PVC filter, 37 mm, 5 µm
Parameters:
Flow rate: 1,5 L/min
TWA sampling volume: 180 L
STEL sampling volume: -
Remarks:
Specific sampling must be carried out for this substance.
Analytical protocol
Principle:
Inductively coupled plasma spectrometry (ICP-MS)
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 soluble barium.
Reference
IRSST. "Détermination des composés solubles dans l'air par ICP-MS". Méthode 374. Non publiée.
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