petroleum and natural gas industries. Included are the requirements for design, design validation, functional evaluation, manufacturing, storage and transport. The requirements of this International Standard are applicable to wire-wrap screens, pre-pack screens and metal-mesh screens as defined herein. The following items are outside the scope of this International Standard: ? expandable sand screens, slotted liners or tubing and accessory items such as centralizers or bull plugs; ? shunt screen technology, inflow control devices, downhole sensors and selective isolation devices, even where they can be an integral part of the sand control screen; ? screen filtration performance criteria, including test methods or analysis for sand retention efficiency; ? end connections of the basepipe.