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

Diquat, as the cation [2764-72-9; 85-00-7; 6385-62-2] (Pr)  

French name in the regulation: Diquat, en tant que cation [2764-72-9; 85-00-7; 6385-62-2] (Pr)

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)
ppm mg/m3 f/cc Notes
TWAEV - 0,1 - Pr
STEV - - - -
Ceiling - - - -
Carcinogenicity Sensitizer
Simple asphyxiantPercutaneous
Prohibited useProhibited recirculation
Minimum exposureExplosion hazard
Ototoxic

TWA adjustment for unusual work schedules

Undetermined

CNESST – Toxicological Index Service


Analysis:

Diquat, as the cation

Recommended method by the IRSST:
Method: NIOSH - 5601
Sampling device: Cyclone in series OVS-2 with XAD-2 and glass fiber filter
Parameters:
Flow rate: 1,7 (nylon) 2,75 (GS3) L/min
TWA sampling volume: 480 L
STEL sampling volume: -
Remarks: 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. A cyclone is required for sampling.
Principle: High performance liquid chromatography with UV detection (HPLC-UV)
NIOSH, Manual of Analytical Methods 5601, 4th ed., Organonitrogen pesticides, 1998.