Acetaldehyde

According to Decree 280-2024 published on February 28, 2024, in the Gazette officielle du Québec, the amendment to the Appendix 1 of the Regulation respecting occupational health and safety (RSST, RLRQ, c. S-2.1, r. 13) will come into force on March 14, 2024. These regulatory changes have not yet been incorporated into the current Substance Data Sheets of the Sampling Guide for Air Contaminants in the Workplace. An update is currently underway and will be available as soon as possible. Consequently, the information contained in the data sheets of substances modified or added in Decree 280-2024 is partially inaccurate or incomplete. Please consult our infoLABO (in French only) for more details. Please contact our client service: [email protected] for further information.

Acetaldehyde

French name in the regulation: Acétaldéhyde

CAS : 75-07-0

Synonyms: Aldéhyde acétique

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	-	-	-	-
STEV	-	-	-	-
Ceiling	25	45	-	-

Carcinogenicity	C3	Sensitizer
Simple asphyxiant		Percutaneous
Prohibited use		Prohibited recirculation
Minimum exposure		Explosion hazard
Ototoxic

TWA adjustment for unusual work schedules

1A : No adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Acetaldehyde

Analysis:

Acétaldéhyde

Method: IRSST - 385

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
2186	Orbo 23 tube 120/60 mg

Parameters:
Flow rate: 0,1 L/min
TWA sampling volume: 10 L
STEL sampling volume: -
Remarks: Before and after sampling, tubes must be stored in a freezer.

Analytical protocol

Principle: Gas chromatography with mass spectrometry (GC-MS)
Precision (%): 4,3
Minimum reported value: 0,1 µg
Remarks: Eleven aldehydes are determined simultaneously: acetaldehyde, isobutyraldehyde, isovaleraldehyde, propionaldehyde, butyraldehyde, furfural, heptanal, hexanal, valeraldehyde, acrolein and formaldehyde. This method must not be used for the specific evaluation of formaldehyde; the methods to be used in this case are 295-1 and 357-1.

Reference

Dépistage des aldéhydes dans l'air par GC-MS. Méthode 385. Non publiée.