Product Testing & Laboratory Control

Scope

• ›Fabric physical: mass per unit area, dimensional stability, pilling, bursting/tensile.
• ›Colour: shade evaluation, colourfastness to washing, rubbing, light and perspiration.
• ›Garment: seam strength, seam slippage, snap/button pull-off, care-label verification.
• ›Laboratory: method selection, equipment calibration, technician competence, result records.

Cost & implementation difficulty

Not yet verified. Independently verified evidence is not available on this site. This section will be published only when a public reference exists.

Steps

1. Build a test plan per fabric construction and end use; document with method, condition and pass criteria.
2. Condition samples per ISO 139 (standard atmosphere 20 °C / 65 % RH) before testing.
3. Use accredited or method-controlled labs; check method issue-year matches the buyer's spec.
4. Verify equipment calibration status and control-sample results before releasing each shift's data.
5. Record raw data, calculated results and disposition against the test plan.
6. Escalate borderline results with re-test rules defined up-front; never re-test to pass.

Risks

• ›Testing off-standard atmosphere or with expired calibration.
• ›Using an obsolete method revision — pass/fail criteria may have changed.
• ›Averaging repeats to hide a single failing specimen.
• ›Releasing on a verbal 'ok' without a signed test report on file.

Evidence & records

• ›Approved test plan per style and material.
• ›Signed lab test reports with method, condition, equipment ID and technician ID.
• ›Calibration certificates and daily control-sample records.
• ›Non-conforming test log with disposition and corrective action linkage.

Case study

Not yet verified. Independently verified evidence is not available on this site. This section will be published only when a public reference exists.

Author & last reviewed

Authored by Sanjeewa Dehiwalage.

Last reviewed: 2026-07-17