Discontinues on or near the surface gen.

[adelaida]

Liquid Penetrate Examination of Impeller after Machining

Evaluation of Indications
An indication is the evidence of a mechanical imperfection. Only indications which have any dimension greater than 1/16 in. shall be considered relevant.
① linear indication is one having a length greater than three times the width.
② A rounded indication is one of circular or elliptical shape with a length equal to or less than three times its width.
③ Any questionable or doubtful indications shall be reexamined to determine whether or not they are relevant.
④ **Discontinues on or near the surface are indicated by retention of the examination medium.

Не совсем понимаю все предложение.

Спасибо.

[Лу Рид]

Индикация несплошностей, находящихся на или у поверхности, выполняется, если пенетрант остается на испытуемой поверхности в течение определенного времени.

[adelaida]

Большое спасибо.