ISO 15616-1:2003 is applicable to CO₂-laser beam machines for welding and cutting in two operating directions.

The main purpose of this International Standard is to provide requirements for acceptance testing of CO₂-laser beam machines prior to or during installation at the user's premises. The acceptance tests are used to document the ability of CO₂-laser beam machines to produce welded joints and cuts of consistent quality.

ISO 15616-1:2003 is intended to be used for preparation of the technical specification for CO₂-laser beam machines for high quality welding and cutting in two operating directions. It specifies basic requirements. However, this International Standard may also be used for testing as part of maintenance, as appropriate.