Xylene (o-,m-,p- isomers)

French name in the regulation: Xylène (isomères o,m,p) [1330-20-7; 95-47-6; 108-38-3; 106-42-3]

Synonyms: Diméthylbenzène

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	100	434	-	-
STEV	150	651	-	-
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: Xylene (o-,m-,p- isomers)

Analysis:

Xylènes ( isomères o,m,p)

Method: IRSST - 101-2

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
2120	Activated charcoal tube 100/50 mg

Parameters:
Flow rate: Max: 0,2 L/min
TWA sampling volume: 12 L
STEL sampling volume: 3 L

Principle: Gas chromatography with flame ionization detection (GC-FID)
Precision (%): 3,5
Minimum reported value: 100 µg
Remarks: The analysis can be done by gas chromatography coupled with mass spectrometry (GC-MS, IRSST method #369); in this case the analytical uncertainty (CVa) is 4.9%.

Reference

IRSST. "Analyse des xylènes (o,m,p.) dans l'air". Méthode 101-2. Méthodes analytiques. Montréal: IRSST, 1986.

Xylenes ( o-,m-,p- isomers)

Method: IRSST - 416

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
2696	566AT passive dosimeter

Parameters:
Flow rate: 0,00754 L/min
TWA sampling volume: -
STEL sampling volume: -
Remarks: For the monitors, the flow must be considered as being a sampling rate.

Analytical protocol

Principle: Gas chromatography with flame ionization detection (GC-FID)
Precision (%): 1,8
Minimum reported value: 20 µg

Reference

IRSST. "Dosage des composés organiques volatils dans l'air par dosimétrie passive". Méthode 416. Non publiée.

IRSST - Institut de recherche Robert-Sauvé en santé et en sécurité du travail

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