How must the automatic dispenser be secured in relation to normal grade?

The correct answer is that the automatic dispenser must be secured 6 inches above normal grade. Securing the dispenser at this height is important for several reasons related to safety and operational efficiency.

Firstly, having the dispenser elevated slightly above normal grade helps prevent the ingress of water or standing liquids that can accumulate due to rain or other environmental factors. This elevation minimizes the risk of contamination, which is critical for maintaining the integrity of the compressed natural gas being dispensed.

Secondly, positioning the dispenser at this specified height also supports compliance with safety regulations and standards that dictate how equipment should be installed in order to avoid potential hazards. This ensures that the dispenser is readily accessible for use while still being protected from environmental elements.

In addition, maintaining this height allows for easier operation and reduces the likelihood of damage to the dispensing equipment from debris or accumulated snow and ice. Keeping the dispenser elevated can also facilitate maintenance activities.

By understanding the rationale behind the requirement, one can appreciate the importance of securing the automatic dispenser at the appropriate height, which enhances both safety and functionality.