Sampling Guide for Air Contaminants in the Workplace - Irsst

ROHS Substances table
121
ROHS Name
CAS
TWAEV
STEV
Ceiling
(mg/m³)
Notes
Sampling
Device
Flow
L/min
Volume
TWAEV
STEV
(L)
Principle
MRV
µg
CVa
(%)
#
meth.
Remarks
Sulfuric acid
7664-93-9
1
3
Treated silica gel tube SKC 226-10-03
2147 Silica gel 400/200 mg
0,2 IC-CD 5,1 5,73
48 IRSST
211-1
Five ions can be determined simultaneously, namely bromide, chloride, nitrate,
phosphate and sulfate.
Analytical results are expressed as hydrobromic, hydrochloric, nitric, phosphoric
and sulfuric acid.
Samples are stable for 21 days at 25°C.
All sulfate ions not originating from the acid can cause positive interference.
Sulfuric acid
7664-93-9
1
3
Mixed cellulose ester filter
2 480 IC-CD
OSHA
ID-113
After sampling, transfer the filter to a glass container.
All the sulfate ions not originating from the acid can cause positive interference.
Sulfuryl fluoride
2699-79-8
21
42
Activated charcoal tube 800/200 mg
0,05-
0,1
3
1,5
IC-CD
NIOSH
6012
Contact the IRSST before sampling.
Sulprofos
35400-43-2
1 OVS-2 tube with XAD-2 and glass fiber
GC-MS
NIOSH
5605
filter
Contact the IRSST before sampling.
NIOSH method 5605 is for pesticides and can be adapted to this product.
2,4,5-T
93-76-5
10 C2
RP
EM
Glass fiber filter, binderless
1-3 200 HPLC-UV
NIOSH
5001
Contact the IRSST before sampling.
Talc, fibrous
1 f/cc C1
EM
Cassette with conductive extension and
mixed cellulose ester filter, Environmental
Express CS250080
918 MCE filter-25
0,5-16 PCM
400 IRSST
243-1
Open cassette sampling. A flow rate not exceeding 2.5 L/min is recommended
for determining an average concentration. Supply at least 2 blanks per series of
samples or 10% of sample total, whichever is highest. Send the samples in a
cardboard box supplied by the IRSST (#3010). In relatively uncontaminated
atmospheres, where the fibre concentration is much lower than 0.1 fibres/mL, use
larger sampling volumes (3000 to 10000L) in order to obtain quantifiable
densities.
The method applies to the counting of all fibres whose refractive index is
compatible with the mounting solution.
The minimum reported value is 25 fibres/mm².
Characterization of the fibres in bulk samples or in deposited dusts is done
using method 244-2. An analysis using a transmission electron microscopy (TEM)
method may be required for some materials containing fine asbestos fibres, for
example floor tiles.
Talc, non fibrous
14807-96-6
3 Pr SKC 225-8-01-1 or 225-8-04 polyvinyl 1,7 180 Grav 25 4,9 IRSST
48-1
chloride filter
(nylon)
902
914
PVC filter-37
PVC filter-25
2,75
(GS3)
997 PVC filter-37, 3 parts
Additional information is available in Info-Labo 91-03. The weight measurement
method for dusts is by definition non-specific.