On March 27, 2026, reporters learned from Zhenhai District Administration for Market Regulation that ISO 25095-1:2026 Propylene oxide for industrial use — Part 1: Determination of purity and trace impurities — Gas chromatographic method was officially published. The international standard was led and developed by Ningbo Zhenhai Refining Lyondell Chemical Co., Ltd.
The publication fills the long-standing blank of international testing standards for propylene oxide detection methods, and accelerates the internationalization of the global propylene oxide product standard system.
Propylene oxide is a vital basic chemical raw material and a core industrial link connecting upstream propylene feedstock and diversified downstream sectors including polyurethane, fine chemicals and electronic materials.
The development quality of the propylene oxide industry directly determines the stability of multiple end-product application chains. It carries pivotal strategic significance for domestic chemical industrial chain security and national core industrial competitiveness.
According to relevant officials from Zhenhai District Administration for Market Regulation, the newly released ISO standard establishes unified global testing specifications for cross-border propylene oxide trade.
It effectively eliminates technical trade barriers between countries, cuts overall cross-border transaction and inspection costs, and strengthens China’s discourse power in the global chemical value chain.
In recent years, Zhenhai District Administration for Market Regulation has fully implemented the regional standardization strategy. It has built a full-life-cycle cultivation system featuring policy guidance, benchmark demonstration and targeted enterprise assistance, upgrading regional standardization capacity from basic guarantee to innovation-driven leadership.
The authority also launches one-file-one-enterprise demand management, integrates industry expert resources, provides on-site standardization guidance for enterprises, and builds communication platforms for domestic and international standard docking.
Up to now, enterprises in Zhenhai District have led the formulation and revision of 12 formal international standards with official release.
