1 Scope
This document specifies test procedures and a method of presenting the results concerning
the parameters which define the main characteristics to be included in the literature
from suppliers of regulators and filter-regulators conforming to ISO 6953‑1.
The purpose of this document is to:
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— facilitate the comparison of pressure regulators and filter-regulators by standardizing
test methods and presentation of test data;
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— assist in the proper application of pressure regulators and filter-regulators in compressed
air systems.
The tests specified are intended to allow comparison among the different types of
regulators and filter-regulators; they 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 for flow-rate characteristics using
an isothermal tank instead of a flow meter. However, this method measures only the
decreasing flow rate part of the hysteresis curve of forward flow and relief flow
characteristics.
NOTE The tests related to electro-pneumatic pressure control valves are specified in ISO 10094‑2.