Chromium VI, water insoluble inorganic compounds

French name in the regulation: Chrome VI, composés inorganiques hydro-insolubles

Exposure Standards in RROHS regulation

Permissible exposure values (PEV)

	ppm	mg/m³	f/cc	Notes
TWAEV	-	0,001	-	-
STEV	-	-	-	-
Ceiling	-	-	-	-

Carcinogenicity	C1	Sensitizer
Simple asphyxiant		Percutaneous
Prohibited use		Prohibited recirculation
Minimum exposure		Explosion hazard
Ototoxic

TWA adjustment for unusual work schedules

III : Weekly adjustment

CNESST – Toxicological Index Service

Consult REPTOX file: Chromium VI, water insoluble inorganic compounds

Analysis:

Chrome VI hydro insolubles

Method: IRSST - 365

Sampling protocol

Sampling device:
Sampling media required:

#IRSST	Description
976	25mm quartz filter in a conical cassette

Parameters:
Flow rate: 1.5 to 4 L/min
TWA sampling volume: 360 L
STEL sampling volume: -

Principle: Ion chromatography with visible detection (IC-VIS)
Precision (%): 3,6
Minimum reported value: 0,04 µg
Remarks: The analytical results are expressed as total water-insoluble chromium VI. Surface tests for chromates can be carried out, and the required equipment (kit #2625) is available at the IRSST. Extraction delay of 8 days for welding fumes and 10 days for the other processes following the sampling date. Ship all samples by rapid courier within a period not exceeding 24 hours after sampling. Any substance that produces a response on the detector at 540 nm and that has a retention time similar to Cr VI is a potential interference.

Reference

IRSST. Détermination des composés inorganiques du chrome hexavalent hydrosolubles et hydroinsolubles dans l'air des lieux de travail, Méthodes analytiques, méthode 365, Montréal, IRSST, 2009, 17 pages.

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

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