Positive Material Identification



EIWAA Oil and Gas Services offers third-party material analysis and material identification in Saudi Arabia by NDT Inspection Services as well as destructive Testing Services. Material Analysis by NDT Inspection is based on the PMI XRF method. PMI Inspection by X-Ray fluorescence analysis determines the material chemical composition by excluding carbon, Phosphorus and sulphur.  EIWAA Oil and Gas Services is the one of the major material analysis services at onsite by conducting portable OES Testing services to find out the carbon and sulphur along with other chemical elements. PMI With Carbon in Saudi Arabia by PMI OES testing is an onsite material analysis method approved by ARAMCO and other chemical contractors.

Elements lighter than sulphur cannot be detected by the X-ray emission analysis due to inherent limitations.  Therefore, this technique cannot be used to detect Carbon. An optical emission spectroscopy may be used to check for all the required elements, including Carbon. The PMI material Inspection covers alloy material, pressure-containing components, field fabricated components and piping (both base metal and welds). 100% PMI testing (each component and weld is tested) shall be performed on all pressure components and welds of alloy materials. 


OES otherwise known as Optical Emission Spectrograph is a material analysis method used to find out the Carbon, Phosphorus and Sulphur in addition to the other elements by PMI XRF Analysis method of material composition. So it is also known as PMI With carbon material analysis at site. Normally PMI with carbon material identification services is used to find out the chemical composition of SS 316 L materials and others used in the oil and gas industry.

Chemical Analysis at Site

Quick mobilization for water bags and lifting accessories across the regions with utmost local presentation and major Port access.

Material Analysis at Site

EIWAA Marine Services is approved by major ports of Saudi Arabia for both Zawil pass and ARAMCO; it enhances quick mobilization for our hydro testing and pneumatic testing services

Power Plants

As an offshore rental service in Saudi Arabia, approved by major IACS Classifications of ABS, BV, Llyods Register and IRS.

Boilers and Pressure Vessel

We are supplying Riggers and lifting inspectors for performing water weights load testing and pedestal crane load testing services at Offshore Rigs and Vessels.

The principle analysis method of SPECTRO’s portable metal analyzer is optical emission spectroscopy (OES) and NITON XLt analyzer is x-ray fluorescence (XRF). The PMI with carbon inspection services unit shall be always re-calibrated at the job site if the readings observed abnormal. Analyzed samples with reference to the job shall be made available for cross-reference and calibration. If sample removal is used, a written procedure for identification and traceability to original material is required. Both inside and outside weld surfaces shall be tested where accessible. PMI XRF testing of welds shall be done after removal of slag and/or oxide from the weld surface. Surface shall be clean bare metal, free of grease or oil as specified by the instrument manufacturer.


Material identification by PMI with carbon is Optical Emission Spectrograph. All the material composition including carbon, phosphorous and Sulphur is identified by OES Material analysis methods.

Positive Material Identification Services is a well-known chemical composition analysis method. Material identification by X-Ray fluorescence analysis (PMI XRAY) is a Non-destructive Testing method. OES is an optical emission spectrograph method for material analysis by destructive testing method.

XRF means X-Ray fluorescence analysis method by Non-destructive testing.

Open chat
Hello 👋
Can we help you?