Sampling Guide for Air Contaminants in the Workplace - Irsst
Sampling Guide for Air Contaminants in the Workplace - Irsst
Sampling Guide for Air Contaminants in the Workplace - Irsst
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ROHS Substances table<br />
97<br />
ROHS Name<br />
CAS<br />
TWAEV<br />
STEV<br />
Ceil<strong>in</strong>g<br />
(mg/m³)<br />
Notes<br />
<strong>Sampl<strong>in</strong>g</strong><br />
Device<br />
Flow<br />
L/m<strong>in</strong><br />
Volume<br />
TWAEV<br />
STEV<br />
(L)<br />
Pr<strong>in</strong>ciple<br />
MRV<br />
µg<br />
CVa<br />
(%)<br />
#<br />
meth.<br />
Remarks<br />
Methyl ethyl ketone<br />
(MEK)<br />
78-93-3<br />
150<br />
300<br />
3M 3500 organic vapour monitor<br />
2695 Passive dosimeter<br />
0,0363 GC-FID 30 6,0<br />
IRSST<br />
25-3<br />
For <strong>the</strong> monitors, <strong>the</strong> flow must be considered as be<strong>in</strong>g a sampl<strong>in</strong>g rate.<br />
Accord<strong>in</strong>g to <strong>the</strong> data from 3M, <strong>the</strong> precision (CVsampl<strong>in</strong>g) of <strong>the</strong> sampl<strong>in</strong>g rate is<br />
2.5%. Refer to <strong>the</strong> 3M passive monitor guide on <strong>the</strong> IRSST's Web site.<br />
Methyl ethyl ketone<br />
(MEK)<br />
78-93-3<br />
150<br />
300<br />
SKC 226-81 Anasorb 747 tube<br />
2190 Anasorb 747 140/70 mg<br />
Max:<br />
0,2<br />
10<br />
3<br />
GC-FID<br />
30 6,0<br />
IRSST<br />
25-3<br />
An activated charcoal tube 100/50 mg (#2120) may be used if <strong>the</strong> samples are<br />
refrigerated immediately after sampl<strong>in</strong>g of a maximum duration of 15 m<strong>in</strong>utes.<br />
This alternative is recommended if o<strong>the</strong>r organic substances must be analyzed<br />
simultaneously on <strong>the</strong> same sample, only if <strong>the</strong> risk of underestimat<strong>in</strong>g <strong>the</strong><br />
concentration of methyl ethyl ketone is assumed by <strong>the</strong> user. The analysis can be<br />
done by gas chromatography couple with mass spectrometry (CG-MS, IRSST<br />
method # 369); <strong>in</strong> this case <strong>the</strong> analytical uncerta<strong>in</strong>ty (CVa) is 1.7%.<br />
Methyl ethyl ketone<br />
peroxide<br />
1338-23-4<br />
--<br />
--<br />
1,5<br />
RP XAD-4 tube<br />
1 15 HPLC-UV<br />
NIOSH<br />
3508<br />
Substance is unstable at ambient temperature. Contact <strong>the</strong> IRSST be<strong>for</strong>e<br />
sampl<strong>in</strong>g.<br />
Methyl <strong>for</strong>mate<br />
107-31-3<br />
246<br />
368<br />
SKC 226-09 charcoal tube, 11 cm long,<br />
2121 Activated charcoal 400/200 mg<br />
0,2 3 GC-FID 40 4,0 IRSST<br />
349-1<br />
Methyl <strong>for</strong>mate must be sampled specifically because of <strong>the</strong> sampl<strong>in</strong>g device<br />
used and <strong>the</strong> specific desorption solvent.<br />
Methyl hydraz<strong>in</strong>e<br />
60-34-4<br />
--<br />
--<br />
0,38<br />
Pc<br />
C2<br />
RP<br />
EM<br />
Glass fritted tip imp<strong>in</strong>ger conta<strong>in</strong><strong>in</strong>g 15 mL<br />
of 0.1 M hydrochloric acid<br />
1,5 20 Colo<br />
NIOSH<br />
3510<br />
Contact <strong>the</strong> IRSST be<strong>for</strong>e sampl<strong>in</strong>g.<br />
O<strong>the</strong>r hydraz<strong>in</strong>es, stannous or ferrous ions, z<strong>in</strong>c, sulfur dioxide, hydrogen sulfide,<br />
halogens and oxygen (<strong>in</strong> <strong>the</strong> presence of Cu I) may cause <strong>in</strong>terference.<br />
Methyl iodide<br />
74-88-4<br />
12 Pc<br />
C2<br />
EM<br />
Activated charcoal tube 100/50mg<br />
0,01-1 50 GC-FID<br />
NIOSH<br />
1014<br />
Contact <strong>the</strong> IRSST be<strong>for</strong>e sampl<strong>in</strong>g.<br />
Methyl isoamyl ketone<br />
110-12-3<br />
234 SKC 226-01 activated charcoal tube<br />
Max: 10 GC-FID 10 3,5 IRSST<br />
265-2<br />
2120 Activated charcoal 100/50 mg<br />
0,2<br />
Methyl isobutyl ketone<br />
108-10-1<br />
205<br />
307<br />
3M 3500 organic vapour monitor<br />
2695 Passive dosimeter<br />
0,030 GC-FID 40 1,4<br />
IRSST<br />
132-3<br />
For <strong>the</strong> monitors, <strong>the</strong> flow must be considered as be<strong>in</strong>g a sampl<strong>in</strong>g rate.<br />
Accord<strong>in</strong>g to <strong>the</strong> data from 3M, <strong>the</strong> precision (CVsampl<strong>in</strong>g) of <strong>the</strong> sampl<strong>in</strong>g rate is<br />
1.3%. Refer to <strong>the</strong> 3M passive monitor guide on <strong>the</strong> IRSST's Web site.