Characterization of the Multi-Point Pin Technology (MPPT) Device: FY19 IDEAS Program Report
Abstract
The 2019 IDEAS (Innovative Development of Employee Advanced Solutions) program provided the opportunity to fully invest in the development of a modification to the established low-volatility agent permeation (LVAP) method. The current LVAP method requires the material under test to be perfectly flat to create sufficient contact to collect permeated agent for analysis. The goal of this program was to implement new technology to enable the LVAP method to be used with test surfaces that are not totally flat. A test device was developed that creates uniform contact across uneven or featured surfaces. The contact transfer hazard test method was modified to evaluate the effectiveness of the new Multi-Point Pin Technology (MPPT) device. The new MPPT weight was compared to the original LVAP weight on flat and uneven surfaces. Results showed that on flat surfaces, the MPPT and LVAP weights both provided adequate contact with no statistical difference in uptake. However, on featured surfaces, use of the MPPT weight resulted in 98% recovery, whereas the LVAP weight recovery was </=1%. The addition of an electromagnetic plate is being explored to increase the initial contact pressure of the MPPT weight to 1 psi and provide the ability to adjust contact pressure instantaneously.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2020
- Accession Number
- AD1113827
Entities
People
- Christopher B. Steinbach
- Christopher J. Ruppert
Organizations
- United States Army Combat Capabilities Development Command