The analysis of PFAS by EPA 1633A and ASTM D8421 is part of the U.S. EPA’s Methods Update Rule (MUR) Rule 22. The action will promulgate EPA into 40 CFR Part 136. Also part of this action, PFAS method ASTM D8421 is proposed to be codified.
Soil gas sampling is easier with Merit Laboratories’ helium shroud. Working closely with our client’s field sample collection needs in mind, Merit developed a helium shroud that makes soil gas sampling more efficient, accurate, and reproducible. And don't worry about tools or calibration in the field. Merit’s helium shroud requires no tools or field calibration. The helium shroud's quick-connect ports are proven time savers in the field. We make it easier.
The term summa canister is trying to go the way of other product names that have become generic titles for their intended purpose, like Kleenex and Band Aids. The term summa canister is used in the environmental industry by many professionals to describe the sampling media used for air sampling prior to laboratory testing. There is, however, inherent risk in believing that summa canister is an acceptable term that defines all air sampling media for TO-15 projects.
