This part of ISO 10440 covers the minimum requirements for helical, spiral and straight-lobe, oil-free rotary

compressors used for applications up to 0,20 MPa in refinery services. It is applicable to air (and other inert gas)

compressors that are in continuous duty on process units.

This part of ISO 10440 is not applicable to oil injected rotary compressors.

NOTE A bullet (?) at the beginning of a clause or sub-clause indicates that either a decision is required or further

information is to be provided by the purchaser. This information should be indicated on the data sheets; otherwise it should be

stated in the quotation request or in the order.