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OHS Research
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IRSST's Production
Magazine and Newsletter
Scientific Watch
Documentation Center
Useful Links
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Slip Resistance Test for Protective Footwear
Loan, Calibration and Repairs
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CQ Fibres
Quality Control of Fiber Counts
CQ Vrac
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Interlaboratory quality
control program
Guides and Tools
Instruments and Sampling Material
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substance
September 16, 2025
Di-sec-octyl phthalate
French name in the regulation:
Phtalate de dioctyle secondaire
CAS :
117-81-7
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
-
5
-
-
STEV
-
10
-
-
Ceiling
-
-
-
-
Carcinogenicity
C3
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:
Di-sec-octyl phthalate
Analysis:
Phtalate de dioctyle secondaire
Method: IRSST - 391
Sampling protocol
Sampling device:
Sampling media required:
#IRSST
Description
912
Cellulose nitrate filter 37 mm
Parameters:
Flow rate: 1,0 L/min
TWA sampling volume: 30 L
STEL sampling volume: 15 L
Remarks:
Store in refrigerator after sampling.
Analytical protocol
Principle:
High performance liquid chromatography with UV detection (HPLC-UV)
Precision (%):
3,0
Minimum reported value:
8 µg
Reference
IRSST. "Détermination des phtalates dans l'air des lieux de travail". Méthode 391. Non publiée.
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