A Compliance Analysis of DINP
A Compliance Analysis of DINP
In late 2025, Mainland China’s Ministry of Ecology and Environment (MEE) added four phthalates (DEHP, DBP, BBP, and DIBP) to the "List of Priority Control Chemicals (Batch 3)." This mandate requires strict risk mitigation to protect health and the environment. Consequently, as environmental supervision tightens in 2026, the industry is rapidly transitioning toward eco-friendly plasticizers to manage rising compliance costs.
Why DINP?
Diisononyl Phthalate (DINP) is the leading alternative to DEHP, offering:
- Superior Performance: High PVC compatibility and plasticizing efficiency.
- Enhanced Durability: Better electrical insulation, heat resistance, and lower volatility than DEHP, extending product lifespans.
- Proven Reliability: Widely used in wire and cable, automotive interiors, and construction.
Verification & Compliance
To ensure products are "4P-Free," two primary testing methods are utilized:
- Internal QC (GC/FID): Preliminary screening identifies substances by retention time. The typical elution order is DIBP→DBP→BBP→DEHP, with DINP appearing last.
- International Certification (GC/MS): Precise verification per IEC 62321-8:2017 standards ensures global market access.
UPC Commitment
UPC’s DINP has been certified by third-party laboratories as "Not Detected" for all regulated 4P substances. By combining rigorous internal GC/FID monitoring with external validation, we provide our clients with reliable, fully compliant solutions.
Fig 1. Third-Party Verified: 4P-Free DINP
Author: Heng-chen Xu | Engineer | UPC Zhenjiang R&D Center
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