ABSTRACT
Previously, an elaborate cotton blending and dust collection protocol was developed and implemented to produce "uniform", vertically elutriated dust samples which were used in a two part interlaboratory endotoxin assay study. The results generated interest in continuing further study. To satisfy this need, a second series of dust samples on two types of filters were produced from ‘three sources of cotton'. A description of the cotton blending and dust collection process will be presented as well as a description of the dust samples collected.
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