{"L1_core": {"domain": "logistics", "category": "packaging", "entity_type": "product"}, "L5_metadata": {"updated": "2026-01-02", "version": "2.0"}, "L2_logistics": {"materials": {"wood": "ISPM_15_treated", "metal": "drums_barrels", "plastics": ["PE", "PP", "EPS"], "corrugated_cardboard": ["B", "C", "E", "BC"]}, "standards": ["ISO 3394", "ISPM 15", "EUMOS 40509", "ISTA"], "sustainability": ["recyclability", "recycled_content", "biodegradability", "carbon_footprint"], "packaging_levels": {"primary": "product_contact", "tertiary": "transport", "secondary": "grouping"}, "standard_dimensions": {"US_pallet_mm": [1000, 1200], "europallet_mm": [800, 1200], "base_module_mm": [600, 400]}}}