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

substance

> > >

August 26, 2025

Cellulose (paper fibres) (Pt)

French name in the regulation: Cellulose (fibres de papier) (Pt)

CAS : 9004-34-6

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	-	10	-	1; Pt
STEV	-	-	-	-
Ceiling	-	-	-	-

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

TWA adjustment for unusual work schedules

1C : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Cellulose (paper fibres)(Pt)

Analysis:

Weight measurement for dusts on encapsulated filter

Method: IRSST - 48-1

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
910	PVC-37 mm, 5 mm preweighed capsule (Accu-Cap)

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.

Reference

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