Zone diameter interpreter chart (Becton, Dickinson and Company).

S. no.	Name of antibiotic	Resistant (Mm)	Intermediate (Mm)	Susceptible (Mm)
1	Amikacin	≤14	15–16	≥17
2	Amoxillian	≤13	14–17	≥18
3	Cefoaclor	≤14	15–17	≥18
4	Cefonicid	≤14	15–17	≥18
5	Clindamycin	≤14	15–17	≥18
6	Fosfomycin	≤12	13–15	≥16
7	Levofloxacin	≤13	14–16	≥17
8	Piperacillin	≤17	18–20	≥21