We work hard to serve you at our best quality services. To meet the highest quality, we perform round robin program and comply closely to the internationally recognized standard procedures. More than half of the about 30 coal laboratories, as well as mineral and environmental labs are accredited to ISO 17025-2005. (ISO 17025 is international standard for general requirements for the competence of testing and calibration laboratories)
Round Robin Program
All laboratory equipment is routinely calibrated. The quality of each laboratory's analysis results is monitored through the use of certified reference materials (CRM), daily controlled sample analysis, and participation in "round robin" check analysis programs. Quality Control is maintained by daily analysis of standard samples, the results of which are presented as "range charts", and by participation in regular "round robin" testing program.

Standard Procedure
PT. Geoservices established its first coal laboratory in 1982 in Bandung, West Java. Highly trained and experienced Indonesian staffs now perform all work in duplicate, in accordance with internationally accepted standards: American Society of Testing Material (ASTM), British Standard (BS), and International Standards (ISO).
To satisfy our client and gain international recognition, our coal laboratories are accreditated to ISO 17025. Currently our coal laboratories in Balikpapan, Samarinda, Berau, Bontang (ITM Site), Tanah Merah Coal Terminal (TMCT Site), Banjarbaru, Asam Asam, and Kota Baru (NPLCT Site) have been accredited to ISO 17025 by National Accreditation Committee (KAN).

PT. Geoservices owns and operates coal laboratory services that spread throughout Indonesia such as Bandung, Mojokerto, Medan, Palembang, Padang, Riau, Tanjung Redeb, Sangatta, Samarinda, Sanga Sanga, Balikpapan, Tanah Merah, Kotabaru-NPLCT, Batu Licin, Asam Asam, Banjarbaru, Muara Teweh, and Sungai Puting.