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

substance

> > >

August 27, 2025

Methyl n-amyl ketone

French name in the regulation: Méthyl n-amyl cétone

CAS : 110-43-0

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	50	233	-	-
STEV	-	-	-	-
Ceiling	-	-	-	-

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

TWA adjustment for unusual work schedules

1B : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Methyl n-amyl ketone

Analysis:

Méthyl n-amyl cétone

Method: IRSST - 316-1

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: 10 L
STEL sampling volume: -

Principle: Gas chromatography with flame ionization detection (GC-FID)
Precision (%): 8,1
Minimum reported value: 49 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 6.3%.

Reference

IRSST. "Analyse de la Méthyl n-amylcétone dans l'air". Méthode 316-1. Méthode non publiée.