Tubes for
Volatile Organic Sampling Trains (VOST)
For sampling of volatile organic compounds (VOCs) and volatile principal
organic hazardous constituents (POHCs) from stationary emission sources,
including
hazardous waste incinerators, EPA method 0031 uses a Volatile
Organic Sampling Train or VOST sampler.
Method 0031 calls for three sorbent tubes:
- One Anasorb 747 sorbent tube (SKC Sorbent tube 226-133)
- Two Tenax sorbent tubes (SKC Sorbent tube 226-134)
Because of their low background levels, these specified sorbents are useful for
collecting low concentrations of VOCs.
VOST tubes from SKC are tested for background and pressure drop
and come complete with stainless steel swagelok fittings and Teflon
ferrules. The tubes may be
reused after conditioning with an inert gas. In addition to the VOST tubes
listed below, SKC will manufacture VOST tubes with different sorbents
to meet your special
applications. Contact your SKC
representative for more information.
VOST tubes must be conditioned prior to use, and used and analyzed within
14 days of conditioning.
Ordering Information Online
Ordering
| Applications |
Sorbent
Amount |
Description
Size (mm)
OD x L |
Qty. |
Cat. No. |
| EPA 0031 |
Anasorb® 747
(20/40 Mesh)
5 gm |
Glass, open
16 x 125 |
1 |
226-133 * |
| EPA 0031 |
Tenax TA
(35/60 Mesh)
1.6 gm |
Glass, open
16 x 125 |
1 |
226-134 * |
| Research |
Anasorb 747 / Tenax TA
(20/40 Mesh) / (35/60 Mesh)
5.2 gm / 1.6 gm |
Glass, open
16 x 125 |
1 |
226-171 * |
| Accessories |
| Replacement Teflon ferrules (set of 2) |
P226133 |
| Replacement Swagelok fittings (set of 2) |
P226134 |
| * |
Limited Shelf-life; contact SKC for more information |
| |
Tubes are chemically conditioned before shipping; use within 30 days
or recondition |
Note: VOST tubes must be conditioned
prior to use; use and analyze within 14 days of conditioning.
Note: EPA methods allow some flexibility accommodating similar sampling
protocols, however, such flexibility places documentation responsibility
on the user. For a detailed explanation, refer to the method.
Custom Tubes & Repacking Available
For specific applications, SKC makes custom environmental sorbent tubes to
meet your specific requirements. Contact your SKC
representative for more information.
This page was last modified June 21, 2007
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