This part of ISO 5782 specifies tests, procedures and a method of presenting the results concerning the parameters which define the main characteristics to be included in the supplier's literature of filters conforming to ISO 5782-1. The scope of this part of ISO 5782 is — to facilitate the comparison of filters by standardizing test methods and presentation of test data; — to assist in the proper application of filters in compressed air systems. The tests specified are intended to allow comparison between the different type of filters; they are not production tests to be carried out on each filter manufactured.