The BMS spec 9-17 is titled CARBON REINFORCEMENTS, HIGH
STRENGTH AND INTERMEDIATE MODULUS FIBERS. This would mean that the fibers used in the pultruded tubes conform to BMS 9-17 prior to being pultruded. The only Boeing spec I know of that relates to pultrusion is BAC5597, CARBON FIBER/EPOXY LAMINATE PULTRUDED STRUCTURAL PARTS, PARTIAL CURE.