IECEx is an international approval scheme for explosion protection equipment.  The IECEx CoC and related QAR can be accepted worldwide in those countries without mandatory national EX approval.  For those countries and region with mandatory EX approval scheme, IECEx CoC and QAR are best document to be used to obtain the national EX approvals without in country testing.  Nemko is a member of IECEx scheme and we can issue IECEx CoC as well as performing audit and issue QAR.