Reclassification of Materials Listed as Transportation Health Hazards
Final rept. Feb 1971-Jun 1972
AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
This study was performed to provide technical background and recommendations for assisting the Department of Transportation in considering a revised health hazards classification system. The study consisted of three phases. Phase 1 -- An extensive literature search was conducted for pertinent human and acute animal toxicity data for about 200 materials, classed as Poison A, B or C in the Commodity List, Section 172.5, Title 49 CFR, andor as Toxic Class 6.1 in the Subsidiary Risk Category in the United Nations publication, Volume I, Transportation of Dangerous Goods, 1966. Materials were classified according to the proposed classification criteria, if valid data were adequate for evaluation. Tests were recommended for the materials for which data were missing or inadequate. Phase 2--Inhalation LC50 toxicity tests were run on mice and rats for five materials and oral toxicity LD50 tests were run on mice and rats for 40 other materials. The phosphine evolution rate for aluminum phosphide in air 55 relative humidity and in water were determined. The results have been summarize and the materials classified. Phase 3--Verification inhalation toxicity LC50 tests were run on mice and rats exposed to chlorine, anhydrous ammonia and hydrogen sulfide. Results have been included and reflected in the classification of these materials. One other material was classified from literature data.
- Information Science
- Miscellaneous Materials