What does calibration by weight involve?

Calibration by weight is primarily concerned with ensuring that the correct amount of fumigant is used during application, which is crucial for effectiveness and safety. When calibration is done by measuring the weight of the fumigant before application, it allows for precise control over the quantity being applied. This measurement ensures that the applicator adheres to the recommended rates for effective pest control and minimizes potential environmental risks or harm from over-application.

This process typically involves weighing the fumigant container before and after use to determine how much has been dispensed, which directly influences both the efficacy of the treatment and compliance with safety regulations. Using weight as a calibration method is considered one of the most accurate approaches because it accounts for any variables that could affect the fumigant release, such as temperature and pressure, ensuring that the required dosage reaches the intended area effectively.

In contrast, the other options pertain to different methods or aspects of application but do not focus on the direct and precise control provided by measuring the weight of the fumigant itself prior to application.