Guideline

GL-OM-04 · In-House Tests

Scope

Scope: Covers the end-to-end In-House Testing process, including wash tests, wearer trials, and drop/hang tests used to evaluate production samples against applicable quality, performance, and customer requirements.

Purpose: Ensures production samples are tested under defined conditions and that identified risks or failures are evaluated, resolved, and approved before production or shipment.

Owner: DMR owns and coordinates the In-House Testing process, including test requirements, cross-functional execution, result evaluation, and required approvals.

Applies to: Applies to FT, GT, PMR, QA, and relevant Technical, MR, and vendor/factory personnel involved in production testing and approval activities.

Requirements

AAL

1. R1 — FT — Carry the in-house wash test out internally even if the customer does not request it

   • The purpose of this procedure is to evaluate the general appearance and properties of garments after washing under consistent and repeatable conditions,.
   • providing a standardised approach for internal quality control and being sure that the goods are in line with customer's quality standards.

2. R2 — FT — Detergent

   • Use persil Color.
   • Dosage: 20 g per wash.
   • Do not use fabric softener or bleaching agents.

3. R3 — PMR — Washing Programme

   • Select the washing programme according to the garment's care label / washing instructions.
   • Care Label Instruction Recommended Machine Programme Approx.. Duration Spin Speed.
   • Double Bar / Very Gentle Delicate Programme ~40 min 800 rpm.
   • Single Bar / Gentle Mix Programme ~1 hour 1, 000–1, 200 rpm.
   • Normal Cotton Programme ~1.5 hours 1, 000–1, 200 rpm.

4. R4 — PMR — Temperature

   • Select the washing temperature according to the garment's care label instructions.
   • Use in general, 30°C or 40°C.
   • If the care label specifies a different temperature, follow the care label requirement.

5. R5 — FT — Cross-staining check

   • When you wash a contrasting-coloured product to check for cross-staining, a small amount of dark-coloured fabric may give inaccurate results.

6. R6 — GT — Garment Preparation and Washing Process

   • Wash at least 50 cm of fabric across the full width, or an amount of fabric equivalent to the fabric used in the product.
   • Check that a suitable reference sample is available for comparison after washing. The measurements of the reference sample do not have to be identical to those of the test sample.
   • Take and record the pre-wash measurements of the sample.
   • Attach the multifibre to the sample.
   • Load the washing machine with the garment and sufficient loading fabric to achieve a total load of approximately 2 kg.
   • Add 20 g of Persil Color detergent.
   • Select the appropriate washing programme and temperature according to the garment's care label and start the washing cycle.
   • After washing, dry the garment according to the care label instructions.
   • Once the garment is completely dry, take the measurements again. Compare the pre-wash and post-wash measurements, calculate and record the shrinkage values as percentages (%). Evaluate the shrinkage result as pass/fail according to the applicable product group and customer manual/standards.
   • Evaluate multifibre staining.
   • Compare the washed garment with the original unwashed sample and check for any changes, including:
     • Colour change / colour fastness.
     • Pilling.
     • Print appearance and durability.
     • Loss or damage of stones, sequins, trims or other accessories.
     • Colour change of accessories.
     • Changes in shape, appearance or surface.
     • Any other deformation or deterioration caused by washing.
   • Wash garments considered high-risk styles, particularly those with prints, stones, sequins, tassels, lace or similar accessories/details, at least 3 times. If the style is considered particularly high risk, the test should be repeated for up to 5 washing cycles.

7. R7 — PMR — Take samples for Garment Testing from Pilot Production

   • The garments must include all trims, labels and prints.

8. R8 — PMR — If required, conduct print durability or other tests in accordance with the Customer's Manual

9. R9 — PMR — Share the Garment Test result with SpringNE and obtain approval if there is any fail

Wearer Trial

10. R10 — PMR / GT — Conduct a Wear Test under the following circumstances

    • When requested during the Risk Assessment Meeting.

    • When a risk is identified during the Fit Evaluation process.

    • When test results do not meet the required standards.

    • When a risk is identified during production inspections.

    • When specifically requested by the customer.

    • This procedure applies to all customers and all orders.

11. R11 — PMR — Method should be as below

    • Step 1 – Initial Measurement: measure and record the sample garment before testing.
    • Step 2 – First Wear & Wash Cycle.
    • Wear the garment for at least 24 hours.
    • Take post-wear measurements.
    • The garment should then be washed according to the care instructions.
    • Take post-wash measurements.
    • Evaluate the overall appearance of the garment and user feedback from the 24-hour wear period.
    • 2nd trial will be conducted with same method.
    • Some customers have their own WT procedure; for example, some brands ask for 5 washes. In that case, follow the customer's WT procedure.
    • Step 3 – Reporting & Approval.
    • Document wear Test results in a Wear Test Report.
    • Report link: In-House Wearer Trial Form.
    • The report may be shared with the customer when required.
    • For internal assessments, the Technical Manager (TM) provides the final approval.

Drop/Hang Test

12. R12 — GT — All products with a risk of stretching while hanging must undergo a Drop Test

    • Examples of such products include.
      • Heavy gauge knitwear.
      • Viscose knitted garments.
      • Loose-gauge knitted garments.
    • Make the decision to conduct a Drop Test jointly with the customer, considering factors such as the garment gauge, yarn type, and knit structure.
      • For example, links-links knit constructions typically have a higher tendency to stretch.

13. R13 — GT — Requirements

    • Provide 3 garments made from production yarn or production fabric for testing.
    • The test duration should be between 3 and 7 days, as agreed with the customer.
    • Take key measurements and recorded before and after the test.
    • Determine based on the Drop Test results, one of the following actions.
    • Modification of the fabric, yarn, or knitting settings.
    • Pattern adjustment or shortening of garment dimensions.
    • No changes required to the garment.
    • Due to recent issues experienced in production (e.g., a men's knitwear style that stretched excessively in stores by 5–10 cm after shipment), it has been decided that Drop Tests will also be conducted during production.
    • QC should collect a Drop Test sample together with the wash test sample from the beginning of production.
    • Conduct the Drop Test for 3–7 days.
    • Complete the Drop Test before shipment approval is granted.
    • Shipment approval should be based on the Drop Test results.
    • The Merchandising Team is responsible for conducting and monitoring the Drop Test process.

Used in

• SOP-OM-09 Risk Assessment (RA) Meeting
• SOP-OM-15 Pilot Production
• SOP-OM-17 Shipment Sample (Gold Seal) Approval
• SOP-OM-18 Final Inspection

Generated automatically from the guidelines each SOP lists.

Forms to be used

• In-House Tests Form

Tutorial

This training video supports the In-House Tests process. It does not replace the numbered steps.

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Exam

Exam for the In-House Tests process. Take it after you finish the process article, including the tutorial video.

Pass mark	Expected duration	Attempts
80%	About 10 minutes	1 (one attempt per person)

Pass mark 80%. 10 single-choice questions, one point each.

Your name and score are recorded and count towards the leaderboard. You have one attempt, so finish the article and the tutorial before you start.

Locked

Watch the tutorial video above to 100% to unlock the exam. The questions appear here once your progress is complete.

Changelog

Changelog

Date	Changed by	What changed
2026-10-12	Order Management	Reworded R5 (cross-staining check) and the note on customers' own WT procedures in R11.
2026-10-12	Order Management	Training video added and exam published.
2026-09-30	Order Management	Converted from process to guideline (GL-OM-04).
2026-09-15	Order Management	Grouped Process steps under AAL, Wearer Trial, and Drop/Hang Test.
2026-09-15	Order Management	Added In-House Tests Form SharePoint link to References.
2026-09-15	Order Management	Fixed wash-check sub-items under step 6 as a nested unnumbered list.
2026-09-15	Order Management	Added related process references.
2026-09-11	Order Management	Article Added