Record the sample identity
Assign the sample a code and record the product, length, color, weight, construction and date received. Photograph the label and product before testing.
- Sample code
- Measured length and net weight
- Color under consistent light
- Construction details
Use a consistent test routine
Test all comparison samples with the same water temperature, products, drying method and tools. Note shedding, tangling, odor, color release, texture recovery and attachment performance.
- Pre-wash combing
- Wash and dry result
- Heat styling response
- Shedding and tangling
- Post-test appearance
Create a signed reference
After approval, confirm which sample and written specification will govern bulk production. Record allowable tolerances and packaging details rather than relying on chat messages alone.
KEY TAKEAWAYS
Use this on your next inquiry
- Measure before testing.
- Use the same method for every supplier.
- Tie bulk acceptance to an identified approved sample.