ANSI/ISA-TR96.05.01 is limited to automated valves normally operating in either a full open or full closed position and provides guidance on the following:
Identifying when partial stroke testing may be useful
Various criteria to consider when selecting the partial stroke method, e.g., automated versus manual test execution, spurious trip potential, and on-line maintainability
The advantages and disadvantages of three basic types of partial stroke test methods: mechanical limiting, positioners, and solenoid operated valves
The use of diagnostic coverage factors in the performance calculations for an automated block valve being partial stroke tested periodically
