US Patent # 8,220,347 B2, US 9,291,531 B2 | Call Us Today! 1-614-504-6915

Announcements


Thank you to everyone who took the time to attend our Battelle learning lab at the Battelle Chlorinated conference today. We appreciate your time and wonderful questions. #battelle2018 ... See MoreSee Less

Vapor Pin updated their cover photo. ... See MoreSee Less

Wonderful to see new and familiar faces at Association for Environmental Health and Sciences Foundation. Stop by and see us at booth 33. ... See MoreSee Less

Craig Cox, CPG will be presenting two posters during the Poster Sessions at the 28th Annual International Conference on Soil, Water, Energy, and Air. (Abstract numbers: 144 & 145) Come see the Mini-PinTM at booth 33! ... See MoreSee Less

#BBGroundgas18 Great opportunity to meet everyone at the Groundgas Conference today in London ... See MoreSee Less

Vapor Pin and our Europe distributor Ribble-Enviro will be exhibiting at the
Ground Gas 2018: Assessing and managing ground gas risk
Date: 01 March 2018 - Venue: Holiday Inn London - Kensington High Street, London, Wrights Lane W8 5SP
... See MoreSee Less

Enjoyed listening to Tony McDonald with AZ solutions talk about pilot test at the Southeastern States VI Symposium. ... See MoreSee Less

Soil Gas Control Systems in New Construction (CC-1000). This new standard addresses RRNC construction for virtually
every building that is larger than a one- and two-family
dwelling. https://aarst-nrpp.com/wp/store/rrnc-for-larger-buildings-cc-1000/
... See MoreSee Less

Great seeing everyone at last night's MSECA event. ... See MoreSee Less

... See MoreSee Less

Main Content

FAQs


Please click on the following information to learn more about how the Vapor Pin® can assist in your field testing

Why does my Vapor Pin® fail a helium leak test?

We can’t rule out leakage, but it’s rare with Vapor Pins®, and if you detect helium at multiple sample points, it might be caused by false positives from methane. Most helium detectors respond positively to methane. Similarly, high concentrations of C5-C12 hydrocarbons in soil gas have been reported to cause false positives in helium detectors. Methane generation is common when oxygen is depleted by high concentrations or large sources of hydrocarbons, especially in petroleum products containing ethanol. This is one of the reasons that Cox-Colvin encourages leak testing via mechanical means, as described in our SOP Leak Testing the Vapor Pin® via Mechanical Means (located under our Resources Page), and as discussed in the Interstate Technology & Regulatory Council (ITRC), 2014 Petroleum Vapor Intrusion guidance. If you do use a helium leak detector, we recommend using a model that does not respond to methane, and test the soil gas for false positives before applying helium.

What Are Shipping Options?

At checkout, shipping choices will be listed in a dropdown list after you enter your address and zipcode.

Fedex Express picks up 4:00 PM Ground picks up 9:00 am EST.

You could also go Fedex.com to determine transit times.  Put in our zipcode for where its coming from (43064) and enter your shipping zipcode destination.

https://www.fedex.com/ratefinder/home?link=4&cc=US&language=en

Distributors in Australia, Brazil, Canada and Europe

We currently have Distributors in Australia, Brazil, Canada and Europe.

For Australia orders –

HydroTerra

6/339 Williamstown Road, Port Melbourne, Victoria 3207

P (03) 8683 0091  | F (03) 9681 9421

 

 

 

 

For Brazil orders

www.Envirologek.com

Envirologek Inc. / Envirologek Latinoamerica S.R.L.

Email: info@envirologek.com

Phone: +55 21 98958-7031 (Brasil)

Phone: (506) 8818-9135 (Costa Rica)

Phone: (714) 709-3683 (USA)

www.Envirologek.com

USA | Central America | South America

For Canada orders
Contact Hoskin Scientific
Burlington, Ontario – Serving Ontario and Maritime provinces
4210 Morris Drive,
Burlington, ON L7L 5L6
Toll Free (800) 665-5871
Email salesb@Hoskin.ca – www.hoskin.ca

For Europe orders
Contact Mark Byrne – Ribble Group
Europe
Ribble Enviro – Unit 4 Gisburn Business Park,
Gisburn, Clitheroe, BB7 4JP, UK
Toll Free 01200 445 804
Email M.Byrne@ribble-enviro.co.uk – www.ribble-enviro-co.uk/a>

 

 

What are the Metric Measurements for installing the Vapor Pin®?

Use 16mm for the pin and 38mm for the covers, we suggest 400mm cutting length for both sizes.

Does the Vapor Pin® connect to Swagelok fittings?

The FLX-VP was specifically designed to connect to a variety of other devices including Swagelok compression fittings. The standard Swagelok connection for 1/4” OD Nylaflow and Teflon tubing, and for TO-17 sorbent tubes is available through the Vapor Pin® website (Part Number SL_FLX1_Fitting). Replacement ferrule sets are also available.

Soil Gas Siloxane Contamination

First and foremost, there may be specifics required by regulators in your state…by in general…

Silicone tubing is more reactive than harder tubing, which is to say that Silicone, and softer tubing generally, is more prone to absorbing and outgassing organic compounds.  Greg Ouellette’s 2004 Soil Vapor Sampling and Analysis – Lessons Learned, DOE/PERF Soil Vapor Workshop, Brea, CA Jan. 27-29, is one of several reports that demonstrates the higher reactivity of soft tubing, this is out of context for our application.  Ouellette drew vapors through 50 ft of Tygon tubing, which has approximately 85 square inches in contact with soil gas.  In the case of the Vapor Pin®, the only contact between soft tubing (Silicone) and soil gas is the cross sectional area between the slab and the bottom of the pin, which is 0.11 square inches.  I think we also agree that while Silicone would absorb some VOCs, the tubing would reach equilibrium at some point and stop absorbing vapors.

We test the Silicone tubing when it arrives by drawing ambient air through the entire 50 ft lengths with a PID, and record the readings.  The tubing does contain a few ppm of vapors in the first few days, specifically siloxanes, which are not on any vapor intrusion list.  We continue to test for several days until the entire length of tubing contributes less than 1 ppm of VOCs.  We then cut the tubing into short lengths and let them continue to air before sending them.

They are relatively obscure issues such as what kind of helium to use during leak testing, or whether to use barbed versus compression fittings, when most of the problems boil down to a few issues:

1)      Run a shut-in leak test on the assembled canister & regulator, as described in  ASTM D7663-11, before going to the field.  Leak test the assembled sample train on site, except for the connection to the Vapor Pin® or equivalent point with a hand-held vacuum pump or peristaltic.  Last, connect the sample train to the sub-slab point and leak test it the point.  Helium works, but we use distilled water.  That’s a problem if the point leaks, but I’ve never seen it with the Vapor Pin®.  We also check the regulator flow rate prior the shut-in test, but an improper flow rate is more likely to result in no sample than an invalid sample.  We’ve developed our own techniques if you’re interested.  Also, documenting your test results and presenting them to the lab improves your credibility and keeps them on their toes.  Even the best labs occasionally provide faulty equipment.

2)      Minimize the lengths of soft tubing by butting up the harder tubing or hardware against each other as close as possible.  We find compression fittings more likely to leak, not less.

3)      Avoid incompetent labs if you have a choice.

4)      Collect an adequate number of samples to evaluate spatial heterogeneity.  This may be the most important part.  At least when working near sources, we’ve repeatedly found that the primary source isn’t where we expected it to be, and our best guess would have provided concentrations that are orders of magnitude lower than maximum.  The only solution is to drill lots of holes, which is practical with the Vapor Pin®.  I’ve personally installed as many as 56 in a day, and my younger coworkers have hit 90.  In many cases you can screen them with a PID and collect a select few for lab analysis.

Please refer to our White Papers under resources for additional information.  One with the Michigan DEQ in which we installed four Vapor Pin® next to their “conventional” sub-slab points (Swagelok fittings set in cement).  They used a variety of labs, sample containers, and analytical methods over the course of months.  But any way we cut it, when we plot the Vapor Pin® against conventional points, we get a good correlation.  The second white paper was done in conjunction with H&P labs in San Diego.  Their sub-slab points, as described in the CA guidance, amount to miniature monitor wells, complete with sand packs and screens.  They collected 10 sample pairs, and again, the correlation is excellent.  In spite of all the issues concerning the Silicone sleeves, the Tygon used to make connections, and others issues we haven’t touched on, the fact that we get the same results over a broad range of concentrations and compounds proves that the Vapor Pins® does what it’s designed to do.