Following are some downloadable files which you may find useful
ASTM Standard Classifications (PDF 123KB)
AS5678B O-Ring Sizes (PDF 674KB)
Material Compatibility Chart (PDF 555KB)
Storage and Shelf Life of Elastomer Materials (PDF 558KB)
Properties Comparison of O-Ring Elastomers (PDF 561KB)
Rubber Selection Criteria (PDF 71KB)
ENA – Material Temperature Range Chart (PDF 950KB)