Identify exactly what you are approving
Record the fabric code, revision, colour, construction, coating side and sample ID. Set tolerances for finished weight and usable width. Keep a labelled approval swatch with the agreed specification so the buyer, processing factory and production team refer to the same material.
Match test evidence to that sample
For each required test, record the method and edition, specimen condition, measured result, threshold and report ID. For tear strength, identify the direction and method. ISO 13937-2 is one example for trouser-shaped specimens when the method is applicable. If the project requires ageing, folding or another pretreatment, record that condition in the approval criteria.
Approve a representative assembly
Trial the actual cutting, joining and sealing process. Check for coating damage, seam leakage, handling changes and consistency with the intended packed volume. Record any process change needed before the bulk trial.
Agree who checks the bulk lot
Document who inspects the rolls, when and how they sample, which tests are repeated and what happens if results differ from the approved sample. For tenders, confirm the submission deadline and evidence list early. Start with the TEC Tent evidence checklist or the tender sourcing guide.