Upholstery Protection Samples: Label Treated and Untreated Areas Without Altering Them

The key distinction

Choose an identification method suited to the sample construction and the planned observations. Record orientation and boundaries using a separate map or an approved edge label where appropriate. If the trial involves cleaning, consider whether the identifier will remain legible and whether its contact materials could affect the sample. Keep a duplicate record outside the test area.

Practical checks

1. Assign each sample a unique identifier before treatment and photograph its original condition.
2. Place labels outside the evaluated area using a method compatible with the material and test.
3. Maintain a map linking the identifier to treatment, orientation and process history, and verify it before each observation.

Example

Illustrative example: a fabric sample is marked with a pen directly beside a spill-test area. During cleaning, colour from the mark moves into the observed region. The result now contains a labelling effect that should not be attributed to the protective treatment.

Scope and limits

Do not conceal an identification failure by guessing which sample is which. Quarantine ambiguous results from the comparison until identity is resolved. A well-labelled sample is still only as representative as its material, preparation and test conditions.

Related guidance

• Coating Viscosity Samples: Record the Container Geometry
• Choosing Applicator Size and Shape for Coating Small Areas
• Upholstery Cleaning Cloths: Why White and Unprinted Can Matter
• Calibration As-Found and As-Left Data: Review Both for Coating Instruments

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.