Credits MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.2 MRc1.1-1.2 MRc1.3 ASTM 1903-97 Phase II environmental site assessment is an investigation that collects samples of building materials to analyze for quantitative values for various contaminants. Resource type Technical Guides Link http://www.astm.org/BOOKSTORE/COMPS/64.htm