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SAMPLE HANDLING |
AIR SAMPLING
Canisters
Volume
discounts
?
Call Restek® Customer Service or your local
Restek® representative!
Get the ultimate insurance
plan—order your SilcoCan®
canister with a Siltek®-
treated valve.
*Range of standard gauge is –30" Hg to 60 psi.
Do not exceed canister maximum pressure of 40 psig (2.75 bar).
SilcoCan® Air Sampling Canisters with RAVE™ Valve
Ideal for low-level reactive sulfur (5–20 ppb), TO-14A, or TO-15 compounds
• Siltek®-treated canister with optional Siltek®-treated valve offers unsurpassed
inertness, even for sulfur-containing or brominated compounds.
• High-quality, metal-to-metal seal,
2
/
3
-turn valve with stainless steel diaphragms
prevent sample adsorption for more-accurate results.
• Canisters and valves made of 304 and 316 stainless steel to withstand the rigors
of field work.
• Both 2-port and 3-port valves available; 3-port valve includes -30
"
Hg/60 psi
vacuum/pressure gauge (other gauges available).
• Now featuring the proven long life, leak-free performance, and effortless
operation of the new RAVE™ valve. (See
page 420for more information.)
For ultimate inertness, SilcoCan® air sampling canisters feature our unique Siltek®
treatment technology. Even highly active components, at low parts-per-billion con-
centrations, can be readily sampled and stored without loss. The RAVE™ valve is a
high-quality, metal-to-metal seal,
2
/
3
-turn valve with metal diaphragms to prevent
sample adsorption for more-accurate results. Both stainless steel and Siltek®-treated
RAVE™ valves are available, in both the 2-port and 3-port configurations. Each canister
is slightly pressurized with contaminant-free nitrogen prior to shipment.
Whether you are sampling for TO-14A, TO-15, or reactive sulfur compounds,
SilcoCan® canisters are your best choice for inertness. In Tedlar® bags, the stability of
low-level (100 ppbv) sulfur volatile organic compounds (VOCs) is poor, even with-
in 24 hours of sampling. Sulfur compounds react with the metal surface in electro-
polished canisters, so they are unsuitable for collecting and storing low-level sulfur
VOCs. SilcoCan® air sampling canisters, which feature a Siltek®-treated surface, offer
excellent storage stability for sulfur VOCs at very low levels (5–20 ppbv), under dry or
humid conditions. The versatility of the SilcoCan® canister makes it an excellent choice
for collecting and storing TO-14A or TO-15 compounds.
Canisters are the gold standard for ambient
VOC sampling.
Note: If attaching any of Restek’s passive sampling kits to a 3 L canister, use a Siltek®-treated (cat.# 563646) or stainless
steel (cat.# 563647) connector between the two components. Please contact Restek® Customer Service or your local
Restek® representative to order.
1 L Volume
3 L Volume
6 L Volume
15 L Volume
Description
cat.#
price
cat.#
price
cat.#
price
cat.#
price
2-Port RAVE Valve
27400
27404
27408
27412
2-Port Siltek-Treated RAVE Valve 27401
27405
27409
27413
3-Port RAVE Valve with Gauge*
27402
27406
27410
27414
3-Port Siltek-Treated RAVE Valve
with Gauge*
27403
27407
27411
27415
without Valve
22090
22091
22092
22093
NEW!
www.restek.com8
Compound
Day0ppbv
Day30ppbv
Stability (%Change)
%RecoveryDay30
p
-value
Restek
VendorA
Restek
VendorA
Restek
VendorA
Restek
VendorA
Propylene
4.46
4.11
4.33
4.38
3
7
87
88
0.229
Dichlorodifluoromethane (F12)
4.59
4.28
4.12
4.24
10
1
82
85
0.169
Chloromethane
4.34
4.10
4.07
4.12
6
0
81
82
0.237
1,2-Dichlorotetrafluoroethane (F114)
4.43
4.14
4.18
4.29
6
4
84
86
0.172
Vinylchloride
4.32
4.04
4.15
4.36
4
8
83
87
0.136
1,3-Butadiene
4.46
4.11
3.95
4.27
11
4
79
85
0.092
Bromomethane
4.25
4.03
4.10
4.32
4
7
82
86
0.126
Chloroethane
4.23
4.02
4.18
4.33
1
8
84
87
0.159
Ethanol
4.74
2.99
5.95
3.18
25
7
119
64
0.049
Trichlorofluoromethane (R11)
4.38
4.07
4.89
5.02
12
23
98
100
0.240
Acrolein
3.37
3.72
0.10
1.20
97
68
2
24
0.006
Acetone
3.70
3.91
4.85
4.45
31
14
97
89
0.392
Acetonitrile
4.67
4.21
4.08
4.46
13
6
82
89
0.462
Isopropylalcohol
3.32
3.49
3.31
3.91
0
12
66
78
0.381
1,1-Dichloroethene
4.47
4.29
3.84
4.09
14
5
77
82
0.117
1,1,2-Trichlorotrifluoroethane (F113)
4.48
4.24
3.96
4.14
12
2
79
83
0.144
Methylenechloride
4.49
4.48
5.12
5.13
14
15
102
103
0.411
Carbondisulfide
4.53
4.50
4.24
4.86
6
5
85
97
0.115
trans
-1,2-Dichloroethene
4.49
4.29
4.05
4.35
10
1
81
87
0.109
Methyl
tert
-butylether (MTBE)
4.26
4.12
3.82
4.13
10
0
76
83
0.086
1,1-Dichloroethane
4.40
4.07
3.94
4.30
11
5
79
86
0.074
Vinylacetate
4.75
3.69
4.33
4.92
9
33
87
98
0.229
2-Butanone (MEK)
3.89
3.69
4.20
3.89
8
5
84
78
0.848
Hexane
4.38
4.12
3.68
4.25
16
3
74
85
0.930
cis
-1,2-Dichloroethene
4.28
4.12
4.06
4.21
5
2
81
84
0.169
Ethylacetate
4.33
4.17
3.95
4.19
9
0
79
84
0.137
Chloroform
4.25
4.06
4.05
4.20
5
4
81
84
0.164
Tetrahydrofuran
3.92
3.81
3.71
3.95
5
4
74
79
0.132
1,1,1-Trichloroethane
4.34
4.08
3.83
4.04
12
1
77
81
0.127
1,2-Dichloroethane
4.43
4.24
3.69
4.02
17
5
74
80
0.107
Benzene
4.28
3.98
3.85
4.19
10
5
77
84
0.083
Carbon tetrachloride
4.76
4.49
4.35
4.86
9
8
87
97
0.056
Cyclohexane
4.28
4.07
3.92
4.15
9
2
78
83
0.130
Heptane
4.10
3.68
3.85
4.11
6
12
77
82
0.122
Trichloroethylene
4.34
4.10
3.89
4.15
10
1
78
83
0.101
1,2-Dichloropropane
4.49
4.16
3.86
4.20
14
1
77
84
0.074
Methylmethacrylate
4.38
4.33
4.08
4.29
7
1
82
86
0.163
1,4-Dioxane
3.50
3.25
3.74
3.70
7
14
75
74
0.355
Bromodichloromethane
5.08
5.05
3.68
3.93
28
22
74
79
0.325
4-Methyl-2-pentanone (MIBK)
4.47
4.34
3.94
4.07
12
6
79
81
0.237
cis
-1,3-Dichloropropene
4.71
4.31
3.79
4.36
19
1
76
87
0.063
trans
-1,3-Dichloropropene
5.05
4.83
3.92
4.62
22
4
78
92
0.038
Toluene
4.66
4.27
4.30
4.40
8
3
86
88
0.259
1,1,2-Trichloroethane
4.32
4.07
4.01
4.21
7
3
80
84
0.125
2-Hexanone (MBK)
4.48
4.27
4.52
4.49
1
5
90
90
0.404
Dibromochloromethane
7.00
7.70
4.05
3.89
42
50
81
78
0.887
Tetrachloroethene
4.39
3.93
3.84
4.10
12
4
77
82
0.125
1,2-Dibromoethane
4.62
4.37
3.89
4.21
16
4
78
84
0.099
Chlorobenzene
4.45
4.17
4.09
4.34
8
4
82
87
0.147
Ethylbenzene
4.41
4.21
4.22
4.33
4
3
84
87
0.215
m
-Xylene
4.38
4.12
4.21
4.32
4
5
84
86
0.203
p
-Xylene
4.38
4.12
4.21
4.32
4
5
84
86
0.203
Styrene
4.66
4.48
4.40
4.57
6
2
88
91
0.192
o
-Xylene
4.86
4.65
4.38
4.20
10
10
88
84
0.443
TableVII:
Day0andDay30average concentrationsof66TO-15 components stored in sixRestek® (SilcoCan®)and
sixVendorA canisters spikedat5.00ppbv,30psig,and93%RH.Compounds inboldareanomalies,whichhavebeen
discussed in the text.%Changeequals theabsolutevalueofDay0minusDay30,dividedbyDay0,andmultipliedby
100.p-value fromANOVAofRestek®andVendorADay30 concentrations.
Stable Storage of 66 VOCs
for 30 Days With SilcoCan®
Air Sampling Canisters
Download the free application note by
searching for “EVAN2066-UNV” at
www.restek.com