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

2,4-D (Pi)  

French name in the regulation: 2,4-D (Pi)
CAS : 94-75-7
Synonyms: Acide dichloro-2,4 phénoxyacétique

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV - 10 - Pi
STEV - - - -
Ceiling - - - -
Carcinogenicity Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited recirculation
Minimum exposureExplosion hazard
Ototoxic

TWA adjustment for unusual work schedules

III : Weekly adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: 2,4-D(Pi)

Analysis:

2-4,D

Recommended method by the IRSST:
Method: NIOSH - 5001
Sampling device: Glass fiber filter, binderless
Parameters:
Flow rate: 1-3 L/min
TWA sampling volume: 200 L
STEL sampling volume: -
Remarks: The aerosol phase might be underestimated because the efficiency of the sampling device does not match inhalable fraction definition. For more information, please contact the IRSST. This substance is not analyzed by our laboratories. It might be possible that the analysis is performed by another laboratory. Please contact the IRSST before sampling.
Principle: High performance liquid chromatography with UV detection (HPLC-UV)
NIOSH Manual of Analytical Methods. 4th ed. Method 5001 : 2,4-D And 2,4,5-T. 1994.