V To G Conversion
The U.S. Army Chemical Materials Agency developed the DAAMS thermal desorption monitoring methods for chemical warfare agents over 20 years ago. Two important tools in this method are V-to-G conversion pads and NOx/HD prefilters. Camsco® has been a leader in the development of quality standards and innovations since 1991.
VGT & V to G Conversion Pads
Camsco V-to-G conversion pads are used to convert the nerve agent VX to the more easily detectable and volatile G analog. V-to-G conversion pads (silver fluoride/AgF pads) have been used for years by installing AgF impregnated pads in compression fittings at the distal end of sample lines.
In 2001, Camsco invented the VGT (patented). The VGT simply moves the AgF pads out of the compression fitting and into a Teflon tube. The four major benefits include:
- 2-8 AgF pads can offer less frequent
change-outs and better recoveries
- Traceability – VGT tubes can be labeled
and tracked in LIMS
- VGTs can be changed out while in
heavy PPE
- ACAMS/MiniCams confirmation
VGTs are available in English and metric sizes from 3/16” to 5/8” in 1/16th and 3-13mm increments with 1-8 AgF pads and in lengths from 2-24”. They can be laser marked, color banded, and labeled with expiration date, lot number and flow direction
COGNI™ SYSTEM
Barcodes and serial numbers are available upon request as part of the COGNI (Camsco’s One Glance and Numeric Identification) System.
We offer five colors (blue, red, yellow, black, and green) of PTFE
spacers for one glance identification.
Camsco Military Desorption Tube
Product Lines & Options |
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Technical Specifications and Part Numbers
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VGT’s V-G Conversion Tubes |
Part Number |
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1/2” (13mm) VGT |
VGT-13 |
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3/8” (9.5mm) VGT |
VGT-9 |
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5/16” (8mm) VGT |
VGT-8 |
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1/4” (6mm) VGT |
VGT-6 |
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3/16” (3mm) VGT |
VGT-1875 |
VGT Conversion Pad Assemblies |
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| V to G Conversion Pads |
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Identification Options
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Type of ID |
Available
On |
Details |
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One-Glance
ID |
Laser Bands |
Stainless Steel Tubes |
- For PE tubes only: 3 bands indicate
a Tenax TA tube; 2 bands indicate an Air Toxics tube;
1 band indicates a Carbotrap B tube; all other tubes
have no band, 4 bands available for custom definition.
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Colored Bands |
Glass Tubes |
- For environmental tubes, blue bands only: 3
bands indicate a Tenax TA tube; 2 bands indicate an Air
Toxics tube; 1 band indicates a Carbotrap B tube; all
other tubes have no band, 4 bands available for custom
definition.
- For military tubes: Any number of
bands in any combination of Black, Red, Blue, Green and
Yellow, defined by customer.
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Colored Spacers |
PTFE (Teflon) Tubes |
- Spacers can be arranged in any combination of Black,
Red, Blue, Green and Yellow, defined by customer.
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Numeric ID |
Barcode S/N |
All Tubes |
- Permanently Laser marked on Stainless steel tubes.
- Permanently fired/enbeded on the surface of centerless
grinded glass tubes.
- High/low temperature stickers on all other tubes.
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Numeric S/N |
All Tubes |
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Absorbent Selection Chart
