Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which Test Standard has a Usage of secondary filters, and a Class of f5? Question 4

### Inputs:
table_name: table, columns: ['Usage', 'Class', 'Performance', 'Performance test', 'Particulate size approaching 100% retention', 'Test Standard']

### Response:
SELECT Test Standard FROM table WHERE Usage = secondary filters AND Class = f5