United States Air Force Honor Guards. The mission of the U.S. Air Force Honor Guard is to represent Airmen to the American public and the world. The men and women of the Air Force Honor Guard represent every member, both past and present, of the Air Force.
A sodium sulfide test for lead is available for tests on skin and other surfaces (10.4.); however, in work for HUD by Dewberry and Davis in 1989, their report concluded that this methodology is unsatisfactory for screening lead present in painted surfaces using HUD action level guidelines (10.12.).
Biuret test. The biuret test (Piotrowski's test) is a chemical test used for detecting the presence of peptide bonds. In the presence of peptides, a copper(II) ion forms violet-colored coordination complexes in an alkaline solution. Several variants on the test have been developed, such as the BCA test and the Modified Lowry test.