Accession Number:

ADB131724

Title:

A Study of Candidate Replacement Materials for DOP (Dioctyl Phthalate) in Filter-Testing Penetrometer Machines

Descriptive Note:

Technical rept. Sep 1987-Jan 1989

Corporate Author:

CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUNDMD

Report Date:

1989-03-01

Pagination or Media Count:

167.0

Abstract:

For many decades dioctyl phthalate DOP has been the standard material used by the U.S. Army and many other agencies to simulate aerosol behavior in the performance of non-destructive gas mask and filter serviceability testing and vehicle or shelter penetrationvulnerability tests. Now, The U.S. Army Surgeon General has taken the position that DOP is a suspected carcinogen. Testing with DOP has been placed under tight controls, or stopped altogether. A safe replacement material for DOP is needed urgently. In this study, several classes of candidate DOP replacement materials having low inherent toxicities were identified by searches of computer data bases and Material Safety Data Sheets MSDS and discussions with manufacturers of materials recently introduced to the marketplace. About three dozen samples of promising materials were obtained and tested in two, filter-penetrometer machines 1 a standard Q127 machine of the type used worldwide in gas mask filter testing, utilizing a hot smoke generating scheme, and 2 the Los Alamos Monodispersed Aerosol Prototype Penetrometer LAMAPP, a state-of-the-art developmental cold smoke generating system. Several materials were identified that are viable candidates to replace DOP in both machines, and in filter testing generally, including isostearic acid, certain synthetic hydrocarbons, and oleic acid. Keywords Fatty acids Polyethylene glycols Decomposition Aging materialsIsostearic acid Nucleation Smokes test Penetrometer machines Fatty acid esters.

Subject Categories:

  • Organic Chemistry
  • Test Facilities, Equipment and Methods
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE