ISO 8574:2004规定了用于测定和分类航空航天液压系统中所用弯管的脉冲疲劳强度的压力脉冲和爆破试验程序。这些程序旨在鉴定高压和低压系统管道，或评估液压系统管道的新材料。

ISO 8574:2004 specifies pressure impulse and burst test procedures for determining and classifying the impulse fatigue strengths of bent tubes used in aerospace hydraulic systems. The procedures are intended for qualification purposes of high- and low-pressure system tubing or for the evaluation of new materials for hydraulic system tubing.