How should a technician measure the transmittance of the AS-1 portion of the windshield?

To measure the transmittance of the AS-1 portion of the windshield effectively, the technician should use a calibrated light gauge. This equipment is designed specifically to measure the amount of light that passes through the glass, which is crucial for ensuring that the windshield meets safety standards. A properly calibrated light gauge will provide an accurate and reliable reading of the transmittance, informing whether the windshield allows sufficient light to enhance visibility and ensure driver safety.

Accepting the meter reading at face value without the context of calibration ignores the necessity of ensuring that the device provides accurate data. Calibration is essential for all measuring devices, especially in safety inspections, where precision can impact vehicle operation and passenger safety. Measurements must always be taken with a device that is functioning correctly and suited to the task, which underscores the importance of using a calibrated light gauge in this scenario.