References
- 1955 . Methylene Blue Particulate Test for Respirator Filters . British Standard No. 2577
- Sodium Flame Particulate Test , Porton Down, Salisbury Wilts, England : Chemical Defense Experimental Establishment . Porton Specification No. 1632A
- July 1956 . An Air-Operated Aerosol Generator Report of Progress , July , Washington, D. C. : U. S. Naval Research Laboratory .
- Drawing No. 6536, Sodium Flame Test Equipment , Porton Down, Salisbury Wilts : Chemical Defense Experimental Establishment .
- Borovik-Romanova , T. F. 1962 . Mutual Influence of Alkali Metals in their Determination by Flame Photometry . Bull. Acad. Sci. USSR , 26 ( 7 ) : 955