Composition Compliance Screening
Use instruments such as Gas Chromatography-Mass Spectrometry (GC-MS) to detect restricted substances-including lead, cadmium, hexavalent chromium, and polybrominated diphenyl ethers (PBDEs)-in the flame retardant. Verify that content levels comply with limits set by EU RoHS and POPs regulations as well as the domestic GB/T 24279 standard, and screen for high-risk substances classified as PBT (Persistent, Bioaccumulative, and Toxic) or CMR (Carcinogenic, Mutagenic, or Reprotoxic).
Full-Lifecycle Performance Verification
Conduct Limiting Oxygen Index (LOI) and vertical burning tests to verify low smoke and low toxicity during combustion, ensuring no significant release of corrosive or harmful gases. Simultaneously, review environmental emission data across the entire lifecycle-production, use, and recycling-to confirm the absence of persistent, non-degradable residues.
Verification of Authoritative Reports
Request authoritative third-party test reports from suppliers and cross-reference them with specific regulatory requirements of the target export markets. Confirm that the flame retardant's environmental metrics fully align with compliance standards to mitigate the risk of shipment rejection or return.
