NF ISO 6953-2, E49-330-2 (01/2024)

This document specifies test procedures and a method of reporting results relating to parameters which define the main characteristics to be included in supplier documentation of pressure regulators and filter regulators conforming to ISO 6953-1. The purpose of this document is: — to facilitate the comparison of pressure regulators and filter regulators by standardizing test methods and the presentation of test data; — to provide assistance so that pressure regulators and filter regulators are correctly used in compressed air systems. The specified tests are intended to enable comparison between different types of pressure regulators and filter-regulators; these are not production tests to be carried out on each pressure regulator or filter-regulator manufactured. ISO 6953-3 can be used as an alternative dynamic test method to determine flow characteristics using an insulated tank in place of a flow meter. However, this method can only obtain the part of the hysteresis curve of the supply flow and exhaust flow characteristics corresponding to decreasing flow rates. NOTE Tests for electro-pneumatic distribution devices with continuous pressure control are specified in ISO 10094-2.
(Automatic translation from French)