What tolerance level is acceptable for the acceptance testing of CNG?

The acceptable tolerance level for the acceptance testing of Compressed Natural Gas (CNG) is set at +/- 1.5%. This standard is established to ensure accurate measurement and consistent performance in various applications involving CNG.

A tolerance range of +/- 1.5% allows for minor variations due to measurement uncertainty and environmental factors while still ensuring that the system operates effectively and meets regulatory compliance. The relatively tight tolerance is crucial for applications in the energy sector, where precision impacts both safety and efficiency.

In comparison to wider tolerances offered in other choices, +/- 1.5% strikes a balance that is stringent enough to maintain high standards in measurement verifications without being overly restrictive, which could complicate operational efficiency or lead to unnecessary costs. This level ensures that delivered quantities are fair and meet expected standards for both consumers and providers.