The US National Institute for Occupational Safety and Health, Niosh, has specified Sterlitech's silver metal membranes for bulk sampling of chrysotile asbestos using X-ray diffraction
Niosh Method 9000 specifies the use of a 0.45micron silver membrane filter for depositing the sample.
Silver metal membranes are an excellent substrate for use with X-ray diffraction; they provide a low level of background noise and distinct silver diffraction lines.
Niosh also specifies silver metal membranes for sampling boron carbide, bromine, chlorine, hydrogen cyanide, lead sulphide, silica, and vandium oxides.
