ISO 14931:2021 PDF

Overview

ISO 14931:2021 - Leather - Leather for apparel (excluding furs) - Specifications and sampling procedures is an international standard that defines recommended values and corresponding test methods for apparel leather (non‑fur). It also specifies sampling, conditioning and laboratory preparation procedures to ensure consistent, reproducible testing and product acceptability across the supply chain.

Keywords: ISO 14931:2021, leather for apparel, sampling procedures, test methods, leather specifications, color fastness, formaldehyde, chromium VI.

Key topics and requirements

• Scope and sampling
  • Sampling location and identification per ISO 2418; sample counts per agreement or ISO 2588 (max five samples for large lots).
  • Conditioning and specimen preparation: physical/mechanical tests per ISO 2419; chemical tests per ISO 4044.
• Essential physical and mechanical characteristics
  • Surface coating thickness ≤ 0.15 mm (ISO 17186).
  • Tear strength ≥ 15 N (ISO 3377‑1).
  • Tensile strength (see ISO 3376) - recommended value ≥ 12 (as tested per ISO 3376).
  • Flex resistance: aniline (non‑pigmented) ≥ 20 000 cycles; pigmented finishes ≥ 50 000 cycles (ISO 5402‑1).
  • Stitch tear resistance ≥ 40 N (ISO 23910).
• Chemical and safety limits
  • Chromium (VI)