According to Pars Petrochemical Company’s public relations office, based on the official certificate issued by IIS, the company’s laboratory demonstrated “excellent” performance in the PT–Styrene proficiency test held in September 2025, with the participation of 36 laboratories from 18 countries worldwide.
The organizer’s official report indicates that the test was conducted in accordance with the international ASTM D2827 standard. The Institute for Interlaboratory Studies is accredited under ISO/IEC 17043 by the Dutch Accreditation Council, underscoring the credibility and rigor of the assessment.
The results of the proficiency test evaluate the accuracy, precision, and reliability of participating laboratories’ analytical performance at the international level.
Pars Petrochemical Company’s participation in this assessment forms part of its external quality control programs, aimed at ensuring the accuracy, validity, and quality of its products.
With this achievement, Pars Petrochemical Company has secured the IIS Certificate of Excellence for the eleventh consecutive year, reaffirming the high technical standards and sustained excellence of its laboratory operations.