Black bolts, screws and nuts (hexagon and square with BSW threads) andpartly machined bolts, screws and nuts (hexagon and square with BSW orBSF threads)
Clinical laboratory testing and in vitro diagnostic test systems - Susceptibility testing of infectious agents and evaluation of performance of antimicrobial susceptibility test devices, Part 2: Evaluation of performance of antimicrobial susceptibility test devices against reference broth micro-dilution