Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Constant small quantities (0.1 to 100 micrograms per hour) of mustard (H) or lewisite (L) gas may be obtained by allowing the vapor to diffuse through a porous alundum plug of suitable dimensions. By regulating the rate of flow of air past the plug known concentrations of the gases in air may be obtained.
The Full Text of this article is available as a PDF (185.6 KB).
