Vapor Pin® offers application variety

21 July 2022


The Vapor Pin® sampling device has a number of applications, but it was designed to collect soil gas for vapor-intrusion assessments, and it does it well. The soil gas directly beneath a building floor, “sub-slab” soil gas, best represents the risk of vapor-intrusion, because it is the next closest in proximity to indoor air. But unlike indoor air, “sub-slab” soil gas generally does not contain background contamination from indoor or outdoor sources. Sub-slab soil gas is more representative of indoor conditions than deep soil gas, and it’s easier to collect using hand-held equipment. (Is the vapor pin considered hand-held equipment?)

Other applications that the Vapor Pin sampling device can be used for, include:

  • Source Characterization – locating Volatile Organic Compound (VOC) contamination sources beneath the pavement
  • Pressure Field Extension (PFE) tests of radon and vapor-mitigation systems
  • Radon Mitigation Testing, and sub-slab differential pressure testing
  • Vapor Intrusion Sampling and testing on commercial and residential sites

Some of the key features in the design of the Vapor Pin include:

  • Reduced Sampling Time
  • Increased number of samples at less cost
  • Better Scope of site conditions
  • Less risk for leaks
  • Improvement in sample quality
  • Easy installation, sampling and retrieval for re-use

Vapor Pins are available in brass or stainless steel: Brass Vapor Pin® sampling devices are for temporary installations (one-time sampling) while stainless steel devices are for long-term installations (repeated sampling), due to the superior corrosion resistance of stainless steel. If there is any doubt, we recommend purchasing stainless-steel pins, as the additional cost is a small part of overall costs, particularly after the Vapor Pin® sampling device has been used multiple times.