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October 14, 2026

Tri-o-cresyl phosphate (IFV) (See Remark)

French name in the regulation: Phosphate de tri-o-crésyle (IFV)

CAS : 78-30-8

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	-	0,02	-	IFV
STEV	-	-	-	-
Ceiling	-	-	-	-

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

Remark :	The TWA exposure value adjustment code for unusual work schedules was revised in 2026.

TWA adjustment for unusual work schedules

IV : Daily or weekly adjustment ( the more stringent of the two)

CNESST – Toxicological Index Service

Consult REPTOX file: Tri-o-cresyl phosphate(IFV)

Analysis:

Phosphate de tri-o-crésyle

Recommended method by the IRSST:

Method: NIOSH - 5037

Sampling protocol

Sampling device: Mixed cellulose ester filter
Parameters:
Flow rate: 1-3 L/min
TWA sampling volume: 100 L
STEL sampling volume: -
Remarks: The recommanded method is not suitable for Tri-o-cresyl phosphate vapor phase determination. For more information, please contact the IRSST. This substance is not analyzed by our laboratories. It might be possible that the analysis be performed by another laboratory. Please contact the IRSST before sampling.

Analytical protocol

Principle: Gas chromatography with flame photometric detection (GC-FPD)

Reference

NIOSH Manual of Analytical Methods, 4th ed., Method 5037 : Triorthocresyl Phosphate, 1994.