本欧洲标准描述了用于型式试验的参考方法，以及用于评估当经受浸入硫酸镁的循环作用时，聚集体行为如何的争议的情况，然后进行烘箱干燥。为了其他目的，特别是工厂生产控制，可以使用其他方法，条件是与参考方法建立适当的工作关系。 注意大多数聚合体可以使用此方法进行性能测试。已经建立了附件A所列岩石类型的精度。该试验可能不适用于所有的岩石类型，而在某些碳酸盐岩和其他含量较高的含镁材料或密晶石英

This European Standard describes the reference method used for type testing and in cases of dispute for assessing how an aggregate behaves when subjected to the cyclic action of immersion in magnesium sulfate, followed by oven drying. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. NOTE The majority of aggregates can be tested for performance using this method. Precision has been established for the rock types listed in Annex A. The test may not be suitable for all rock types and reservations have been expressed elsewhere in respect of some carbonate aggregates and some aggregates having a high proportion of magnesium bearing materials or of cryptocrystalline quartz.