DENNIS SCHROEDER / NREL / US DEPARTMENT OF ENERGY / SCIENCE PHOTO LIBRARY DENNIS SCHROEDER / NREL / US DEPARTMENT OF ENERGY / SCIENCE PHOTO LIBRARY
Electronic water permeation test card. Researcher holding a glass test card for the Electrical Ca Test assembly, used to detect incoming moisture. NREL's (National Renewable Energy Laboratory) electrical Ca test (or water permeation test method) measures water permeating through thin film barriers and provides an electrical measurement. Photographed at NREL, Colorado, USA.
Model release not required. Property release not required.