Calibration of UV-VIS spectrophotometer

Dear friends,

In UV-VIS Spectrophotometer calibration, for

Resolution : It is given that the ratio of maximum at 269nm to the minimum at 266nm should be not less than 1.5.

My question is, is maximum at 269 ± 2nm and minimum at 266 ± 2nm variation is allowed.

Please clarify.

Thankyou,

Regards,
RAMKUMAR. S

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