411
SAMPLE HANDLING |
AIR MONITORING
Canisters
• Proprietary electropolished surface that maintains compound stability.
• High quality, metal-to-metal seal,
2
/
3
-turn valve with stainless steel diaphragms or
Bellows design.
• 2-port or 3-port valve available for diaphragm valve; 3-port valve includes
-30" Hg/60 psi vacuum/pressure gauge (other gauges available).
US EPA Compendium of Air Methods TO-14A and TO-15 regulate the collection, stor-
age, and analysis of volatile organic compounds (VOCs) using treated air sampling can-
isters. Restek offers a complete line of TO-Can® canisters (SUMMA can equivalent),
electropolished using a proprietary process and extensively cleaned using an ultrasonic
method. This ensures a high-quality, passivated surface that maintains the stability of
TO-14A/TO-15 compounds during storage. The frame surrounds the electropolished
canister, eliminating the need for weld marks on the sphere, thereby preventing active
sites on the canister. The Parker® Hannifin metal-to-metal diaphragm valve supports
the excellent performance of the canister.
The unique holder attaches the handle and base to the canister without welds, and
protects the canister, tube stub, and valve. The
2
/
3
-turn diaphragm valve has a metal-to-
metal seat and a temperature limit of 250°C. We leak check the system with helium to
ensure the TO-Can® canister and valve are leak-tight, then pressurize the canister with
contaminant-free nitrogen before we ship it.
Improved TO-Can
®
Air Monitoring Canisters (SUMMA Can Equivalent)
Optimized for EPA Methods TO-14A and TO-15, and ASTM D5466
Alternative Mounted Vacuum/Pressure Gauges
The standard vacuum/pressure range on a SilcoCan® or TO-Can® canister fitted
with a gauge is -30" Hg to 60 psi. To have a different gauge mounted on your
canister, add the appropriate suffix number to the canister catalog number.*
*No price difference for these substituted gauges.
Features
Benefits
Metal to metal seat, valve with stainless steel diaphragms.
Vacuum/pressure gauge (optional).
Stable to 250°C.
No sample adsorption, for more accurate results.
Ascertain internal conditions at a glance.
Heat canister to 250°C for superior cleaning.
*Range of standard gauge is -30"Hg to 60psi.
For additional gauge and valve options, see pages 412-413.
Gauge
Suffix
-30" Hg/15psi
-651
-30" Hg/30psi
-652
Quickly confirm vacuum or pressure.
Request a high-quality gauge mounted
on your SilcoCan® or TO-Can® canister.
did you
know
?
TO-Can® canisters are cleaned prior to shipping.
please
note
• SUMMA canister equivalent.
• Excellent analyte recovery—even after 14 days
of storage.
24173
22107
free
literature
A Guide toWhole Air Canister Sampling:
Equipment Needed and Practical Techniques for Collecting Air Samples
Ambient air sampling involves collecting a representative sample of ambient air for analysis. There are two general
approaches: 1) “whole air” sampling with canisters or Tedlar® bags and 2) “in-field concentration” sampling using
sorbent tubes or cold traps. In this guide, we focus on collecting whole air samples in canisters, a flexible technique
with many applications.
Download your free copy from
Technical Guide
lit. cat.# EVTG1073
1L Volume
3L Volume
6L Volume
15L Volume
Description
cat.#
price
cat.#
price
cat.#
price
cat.#
price
Parker Diaphragm Valve
w/ Parker Diaphragm Valve
24172
24173
24174
24175
w/ Parker Diaphragm Valve, and Gauge* 24176
24177
24178
24179
Swagelok SS4H Bellows Valve
w/ Swagelok SS4H Bellows Valve
22105
22106
22107
22108
without Valve
22094
22095
22096
22097
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
