Imperfections Observed during Radiological Inspection (API 5L)

The maximum acceptable size and distribution of slag inclusion and/or gas pocket imperfections are given in Table 4 and 5 and Fig. 2 and 3(see note).

The important factors to be considered in determining if imperfections are acceptable are the size and spacing of the imperfections and the sum of their diameters in an established distance. For simplicity, the distance is established as any 6 in.(150㎜) length. Imperfections of this type usually occur in an aligned pattern, but no distinction is made between aligned and scattered patterns. Also, the distribution pattern may be of assorted sizes.

Table 4. Elongated Slag-Inclusion-Type Imperfections^a

위의 표에서 보면 슬래그의 dimensions 1.6*12.7라고 되어있는데 이 뜻이 면적을 의미하는것인지 판정이 모호합니다. API5L 판정그림에서는 길이만 언급을 했거든요.

예를 들어 결함길이가 2*11일때 합격일까요? 아님 불합격일까요?

제 생각에는 면적을 따져 판정하는것이라 생각하는데요. 여러분의 의견은 어떠신지요?