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The energy absorption is a different way to evaluate toughness, and gain unanimity in decisions regarding the acceptance of the values. The results are analyzed in a number of ways. The minimum energy absorption is often specified but it must be noted that the typical values differ significantly. When “leak-before-break” is the criteria of design that is in most cases including the pipeline design, the C_v must be set to a higher values at the given design temperature. Generally, the test temperature is also changed to about 5^oC below the least anticipated service temperature (LAST), this practice is common in design of deep-sea risers and other structures. However, for pipeline the reduction in temperature is further reduced.