Co-57 uniformly dispensed in an epoxy matrix is injected into a 0.094" (2.4 mm) outer diameter flexible plastic tube having an inner diameter of 0.02" (0.508 mm). The overall length and the active length of the ruler is 19.7" (50 cm). Contained activity is supplied as a nominal value +/- 5%.
*Note: Other activities are available upon request.
