FILTER ACCEPTANCE TESTING AND PARTICLE GENERATION STUDY
Abstract
Methods are presented for performing nondestructive acceptance testing on the particulate matter filter (part of the Pershing missile primary power station pneumatic system). The possibility is investigated of particle generation and passage in the hose which transfers high pressureAIR FROM THE POWER STATION TO THE MISSILE. Two filter test methods were investigated. One was the particle count method in which the actual particles of system contaminant are sampled from the system and counted to determine if the filter is acceptable. The other was the bubble point method in which the amount of pressure needed to force a fluid through the filter element pores is correlated to the maximum particle size which can pass through the pores. The conclusions derived from the study are: (1) The particle count method cannot be successfully used to test the particulate matter filter due to variables inherent in the method. (2) The bubble point method can be used to test the particulate matter filter. (3) Particle generation and passage through the flexible hose is erratic. The particles are small in number and range in size up to 2500 microns. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1961
- Accession Number
- AD0268588
Entities
People
- Don R. Taylor
Organizations
- United States Army Engineer Research and Development Laboratory