| TIER 01 |
Physical & Tensile Integrity
Tensile strength, tear resistance, grain crack, and Bally flex endurance (50,000 cycles).
|
ISO 3376 / ISO 3377 tensile dynamometer and computerized elongation measurement. |
ISO / IEC 17025 |
| TIER 02 |
Chemical Substance Restriction
Screening for hexavalent chromium (Cr VI <3 ppm), formaldehydes, azo dyes, and banned phenols.
|
High-performance liquid chromatography (HPLC) and spectrophotometric analysis. |
EU REACH / ZDHC |
| TIER 03 |
Wastewater Characterization
Monitoring chemical oxygen demand (COD), BOD5, TSS, pH, and total chromium prior to discharge.
|
Continuous sampling of primary and secondary biological effluent channels. |
National EPA Norms |
| TIER 04 |
Traceability & Origin Chain
Verifying raw skin origin from highland slaughterhouses through tannery processing to final batch codes.
|
Digital lot tagging, cooperative origin registries, and LIDI annual onsite inspection. |
EHL Guidebook 2026 |